diff --git a/src/main/java/tenor/ActuallyCraftTask.java b/src/main/java/tenor/ActuallyCraftTask.java
index 45f88a48c..5815f95ac 100644
--- a/src/main/java/tenor/ActuallyCraftTask.java
+++ b/src/main/java/tenor/ActuallyCraftTask.java
@@ -17,9 +17,7 @@
 
 package tenor;
 
-import java.util.List;
-
-public class ActuallyCraftTask extends TaskLeaf implements ISingularTask {
+public class ActuallyCraftTask extends SingularTaskLeaf {
 
     public final CraftingTask parent;
 
@@ -35,7 +33,6 @@ public class ActuallyCraftTask extends TaskLeaf implements ISingularTask {
 
     @Override
     public double priority() {
-        List<ISingularChildTaskRelationship> parentTasks = (List) parentTasks(); // pog
-        return parentTasks.stream().mapToDouble(ISingularChildTaskRelationship::allocatedPriority).sum();
+        return parentTasks().stream().mapToDouble(ISingularChildTaskRelationship::allocatedPriority).sum();
     }
 }
diff --git a/src/main/java/tenor/AquireCraftingItems.java b/src/main/java/tenor/AquireCraftingItems.java
index 398949142..64918b047 100644
--- a/src/main/java/tenor/AquireCraftingItems.java
+++ b/src/main/java/tenor/AquireCraftingItems.java
@@ -29,8 +29,6 @@ public class AquireCraftingItems extends QuantizedTaskNode implements ClaimProvi
         this.parent = parent;
         this.parentRelationship = createRelationshipToParent(parent);
         addParent(parentRelationship);
-
-
     }
 
     @Override
diff --git a/src/main/java/tenor/AquireItemTask.java b/src/main/java/tenor/AquireItemTask.java
index 02e3d8141..3227f919d 100644
--- a/src/main/java/tenor/AquireItemTask.java
+++ b/src/main/java/tenor/AquireItemTask.java
@@ -21,7 +21,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-public class AquireItemTask extends QuantizedTaskNode implements ClaimProvider, IQuantizedDependentCostCalculator {
+public class AquireItemTask extends QuantizedTaskNode implements ClaimProvider, IQuantizedDependentCostCalculator<IQuantizedChildTaskRelationship> {
 
     HashMap<IQuantizedChildTaskRelationship, Integer> allocation; // allocation of what tasks have claim over what items in our inventory i guess
 
diff --git a/src/main/java/tenor/GetToCraftingTableTask.java b/src/main/java/tenor/GetToCraftingTableTask.java
index 6ecc16835..204353f2c 100644
--- a/src/main/java/tenor/GetToCraftingTableTask.java
+++ b/src/main/java/tenor/GetToCraftingTableTask.java
@@ -17,9 +17,7 @@
 
 package tenor;
 
-import java.util.List;
-
-public class GetToCraftingTableTask extends TaskLeaf implements ISingularTask {
+public class GetToCraftingTableTask extends SingularTaskLeaf {
     public static final GetToCraftingTableTask INSTANCE = new GetToCraftingTableTask(); // ? idk
 
     @Override
@@ -29,7 +27,6 @@ public class GetToCraftingTableTask extends TaskLeaf implements ISingularTask {
 
     @Override
     public double priority() {
-        List<ISingularChildTaskRelationship> parentTasks = (List) parentTasks(); // pog
-        return parentTasks.stream().mapToDouble(ISingularChildTaskRelationship::allocatedPriority).sum();
+        return parentTasks().stream().mapToDouble(ISingularChildTaskRelationship::allocatedPriority).sum();
     }
 }
diff --git a/src/main/java/tenor/IQuantizedDependentCostCalculator.java b/src/main/java/tenor/IQuantizedDependentCostCalculator.java
index 01690956c..6e0fccf97 100644
--- a/src/main/java/tenor/IQuantizedDependentCostCalculator.java
+++ b/src/main/java/tenor/IQuantizedDependentCostCalculator.java
@@ -17,7 +17,7 @@
 
 package tenor;
 
-public interface IQuantizedDependentCostCalculator extends ITaskNodeBase {
+public interface IQuantizedDependentCostCalculator<T extends ITaskRelationshipBase> extends ITaskNodeBase<T> {
     default IQuantityRelationship cost() {
         switch (type()) {
             case SERIAL:
diff --git a/src/main/java/tenor/IQuantizedTask.java b/src/main/java/tenor/IQuantizedTask.java
index 7c7675597..0b8e76ed2 100644
--- a/src/main/java/tenor/IQuantizedTask.java
+++ b/src/main/java/tenor/IQuantizedTask.java
@@ -17,7 +17,7 @@
 
 package tenor;
 
-public interface IQuantizedTask extends ITask {
+public interface IQuantizedTask extends ITask<IQuantizedChildTaskRelationship> {
 
     /*default QuantityRelationship priority() {
         return q -> {
@@ -33,7 +33,7 @@ public interface IQuantizedTask extends ITask {
 
     IQuantityRelationship cost();
 
-    default IQuantizedChildTaskRelationship<? extends ITaskNodeBase> createRelationshipToParent(ITaskNodeBase parent) {
+    default IQuantizedChildTaskRelationship createRelationshipToParent(ITaskNodeBase parent) {
         if (parent instanceof IQuantizedTask) {
             return new QuantizedToQuantizedTaskRelationship((QuantizedTaskNode) parent, this, parent.type());
         } else {
diff --git a/src/main/java/tenor/IQuantizedTaskNode.java b/src/main/java/tenor/IQuantizedTaskNode.java
index d5ab095cd..79e099c58 100644
--- a/src/main/java/tenor/IQuantizedTaskNode.java
+++ b/src/main/java/tenor/IQuantizedTaskNode.java
@@ -21,6 +21,6 @@ package tenor;
  * @author Brady
  * @since 10/30/2018
  */
-public interface IQuantizedTaskNode extends ITaskNodeBase, IQuantizedTask {
+public interface IQuantizedTaskNode extends ITaskNodeBase<IQuantizedChildTaskRelationship>, IQuantizedTask {
 
 }
diff --git a/src/main/java/tenor/ISingularTask.java b/src/main/java/tenor/ISingularTask.java
index 0686bc284..df00f58ed 100644
--- a/src/main/java/tenor/ISingularTask.java
+++ b/src/main/java/tenor/ISingularTask.java
@@ -17,7 +17,7 @@
 
 package tenor;
 
-public interface ISingularTask extends ITask {
+public interface ISingularTask extends ITask<ISingularChildTaskRelationship> {
     double cost();
 
     double priority();
diff --git a/src/main/java/tenor/ISingularTaskNode.java b/src/main/java/tenor/ISingularTaskNode.java
index 0b0fd03b7..eb2f41de5 100644
--- a/src/main/java/tenor/ISingularTaskNode.java
+++ b/src/main/java/tenor/ISingularTaskNode.java
@@ -21,6 +21,6 @@ package tenor;
  * @author Brady
  * @since 10/30/2018
  */
-public interface ISingularTaskNode extends ITaskNodeBase, ISingularTask {
+public interface ISingularTaskNode extends ITaskNodeBase<ISingularChildTaskRelationship>, ISingularTask {
     double priorityAllocatedToChild(ISingularParentTaskRelationship relationship);
 }
diff --git a/src/main/java/tenor/ITask.java b/src/main/java/tenor/ITask.java
index 628f40d7a..eee9d1c85 100644
--- a/src/main/java/tenor/ITask.java
+++ b/src/main/java/tenor/ITask.java
@@ -19,13 +19,13 @@ package tenor;
 
 import java.util.List;
 
-public interface ITask {
+public interface ITask<T extends ITaskRelationshipBase> {
 
-    List<ITaskRelationshipBase> parentTasks();
+    List<T> parentTasks();
 
-    ITaskRelationshipBase createRelationshipToParent(ITaskNodeBase parent);
+    T createRelationshipToParent(ITaskNodeBase parent);
 
-    void addParent(ITaskRelationshipBase relationship);
+    void addParent(T relationship);
 
     default void addParent(ITaskNodeBase parent) {
         addParent(createRelationshipToParent(parent));
diff --git a/src/main/java/tenor/ITaskNodeBase.java b/src/main/java/tenor/ITaskNodeBase.java
index 48ea4ad58..143e76f96 100644
--- a/src/main/java/tenor/ITaskNodeBase.java
+++ b/src/main/java/tenor/ITaskNodeBase.java
@@ -19,7 +19,7 @@ package tenor;
 
 import java.util.List;
 
-public interface ITaskNodeBase extends ITask {
+public interface ITaskNodeBase<T extends ITaskRelationshipBase> extends ITask<T> {
 
     List<ITaskRelationshipBase> childTasks();
 
diff --git a/src/main/java/tenor/MineTask.java b/src/main/java/tenor/MineTask.java
index e33af6cfa..d8b9e2ba4 100644
--- a/src/main/java/tenor/MineTask.java
+++ b/src/main/java/tenor/MineTask.java
@@ -17,7 +17,7 @@
 
 package tenor;
 
-public class MineTask extends TaskLeaf implements IQuantizedTask {
+public class MineTask extends QuantizedTaskLeaf {
     @Override
     public IQuantityRelationship priority() {
         return null;
diff --git a/src/main/java/tenor/QuantizedTaskLeaf.java b/src/main/java/tenor/QuantizedTaskLeaf.java
new file mode 100644
index 000000000..c053b9977
--- /dev/null
+++ b/src/main/java/tenor/QuantizedTaskLeaf.java
@@ -0,0 +1,21 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tenor;
+
+public abstract class QuantizedTaskLeaf extends TaskLeaf<IQuantizedChildTaskRelationship> implements IQuantizedTask {
+}
diff --git a/src/main/java/tenor/QuantizedTaskNode.java b/src/main/java/tenor/QuantizedTaskNode.java
index e7f5ac5f3..804ce2be9 100644
--- a/src/main/java/tenor/QuantizedTaskNode.java
+++ b/src/main/java/tenor/QuantizedTaskNode.java
@@ -17,7 +17,7 @@
 
 package tenor;
 
-public abstract class QuantizedTaskNode extends TaskNode implements IQuantizedTask {
+public abstract class QuantizedTaskNode extends TaskNode<IQuantizedChildTaskRelationship> implements IQuantizedTask {
 
     public QuantizedTaskNode(DependencyType type) {
         super(type);
diff --git a/src/main/java/tenor/SingularTaskLeaf.java b/src/main/java/tenor/SingularTaskLeaf.java
new file mode 100644
index 000000000..89104c8d4
--- /dev/null
+++ b/src/main/java/tenor/SingularTaskLeaf.java
@@ -0,0 +1,21 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tenor;
+
+public abstract class SingularTaskLeaf extends TaskLeaf<ISingularChildTaskRelationship> implements ISingularTask {
+}
\ No newline at end of file
diff --git a/src/main/java/tenor/SingularTaskNode.java b/src/main/java/tenor/SingularTaskNode.java
index f8bee6a27..ead3dffbc 100644
--- a/src/main/java/tenor/SingularTaskNode.java
+++ b/src/main/java/tenor/SingularTaskNode.java
@@ -17,7 +17,7 @@
 
 package tenor;
 
-public abstract class SingularTaskNode extends TaskNode implements ISingularTaskNode {
+public abstract class SingularTaskNode extends TaskNode<ISingularChildTaskRelationship> implements ISingularTaskNode {
 
     public SingularTaskNode(DependencyType type) {
         super(type);
diff --git a/src/main/java/tenor/Task.java b/src/main/java/tenor/Task.java
index be3a301c3..372ce8890 100644
--- a/src/main/java/tenor/Task.java
+++ b/src/main/java/tenor/Task.java
@@ -19,17 +19,17 @@ package tenor;
 
 import java.util.List;
 
-public abstract class Task implements ITask {
+public abstract class Task<T extends ITaskRelationshipBase> implements ITask<T> {
 
-    List<ITaskRelationshipBase> parentRelationships;
+    List<T> parentRelationships;
 
     @Override
-    public List<ITaskRelationshipBase> parentTasks() {
+    public List<T> parentTasks() {
         return parentRelationships;
     }
 
     @Override
-    public void addParent(ITaskRelationshipBase relationship) {
+    public void addParent(T relationship) {
         if (relationship.childTask() != this) {
             throw new IllegalArgumentException();
         }
diff --git a/src/main/java/tenor/TaskLeaf.java b/src/main/java/tenor/TaskLeaf.java
index 6122531cb..7575124f3 100644
--- a/src/main/java/tenor/TaskLeaf.java
+++ b/src/main/java/tenor/TaskLeaf.java
@@ -17,5 +17,5 @@
 
 package tenor;
 
-public abstract class TaskLeaf extends Task {
+public abstract class TaskLeaf<T extends ITaskRelationshipBase> extends Task<T> {
 }
diff --git a/src/main/java/tenor/TaskNode.java b/src/main/java/tenor/TaskNode.java
index 8b2cf3b47..aabe5d0fc 100644
--- a/src/main/java/tenor/TaskNode.java
+++ b/src/main/java/tenor/TaskNode.java
@@ -19,7 +19,7 @@ package tenor;
 
 import java.util.List;
 
-public abstract class TaskNode extends Task implements ITaskNodeBase {
+public abstract class TaskNode<T extends ITaskRelationshipBase> extends Task<T> implements ITaskNodeBase<T> {
 
     List<ITaskRelationshipBase> childRelationships;
     public final DependencyType type;