diff --git a/src/main/java/baritone/chunk/ChunkPacker.java b/src/main/java/baritone/chunk/ChunkPacker.java
index e52f6a54..82a36709 100644
--- a/src/main/java/baritone/chunk/ChunkPacker.java
+++ b/src/main/java/baritone/chunk/ChunkPacker.java
@@ -20,7 +20,10 @@ package baritone.chunk;
 import baritone.pathing.movement.MovementHelper;
 import baritone.utils.Helper;
 import baritone.utils.pathing.PathingBlockType;
-import net.minecraft.block.*;
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockDoublePlant;
+import net.minecraft.block.BlockFlower;
+import net.minecraft.block.BlockTallGrass;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.init.Blocks;
 import net.minecraft.util.ResourceLocation;
@@ -108,7 +111,7 @@ public final class ChunkPacker implements Helper {
             return PathingBlockType.WATER;
         }
 
-        if (MovementHelper.avoidWalkingInto(block) || block.equals(Blocks.FLOWING_WATER) || (block instanceof BlockSlab && state.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM)) {
+        if (MovementHelper.avoidWalkingInto(block) || block.equals(Blocks.FLOWING_WATER) || MovementHelper.isBottomSlab(state)) {
             return PathingBlockType.AVOID;
         }
         // We used to do an AABB check here
diff --git a/src/main/java/baritone/pathing/movement/MovementHelper.java b/src/main/java/baritone/pathing/movement/MovementHelper.java
index 5561f365..3e019745 100644
--- a/src/main/java/baritone/pathing/movement/MovementHelper.java
+++ b/src/main/java/baritone/pathing/movement/MovementHelper.java
@@ -270,6 +270,16 @@ public interface MovementHelper extends ActionCosts, Helper {
         return 0; // we won't actually mine it, so don't check fallings above
     }
 
+    static boolean isBottomSlab(IBlockState state) {
+        return state.getBlock() instanceof BlockSlab
+                && !((BlockSlab) state.getBlock()).isDouble()
+                && state.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM;
+    }
+
+    static boolean isBottomSlab(BlockPos pos) {
+        return isBottomSlab(BlockStateInterface.get(pos));
+    }
+
     /**
      * The entity the player is currently looking at
      *
diff --git a/src/main/java/baritone/pathing/movement/movements/MovementAscend.java b/src/main/java/baritone/pathing/movement/movements/MovementAscend.java
index 46162806..d666ff6a 100644
--- a/src/main/java/baritone/pathing/movement/movements/MovementAscend.java
+++ b/src/main/java/baritone/pathing/movement/movements/MovementAscend.java
@@ -28,7 +28,6 @@ import baritone.utils.InputOverrideHandler;
 import baritone.utils.Utils;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockFalling;
-import net.minecraft.block.BlockSlab;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.Minecraft;
 import net.minecraft.init.Blocks;
@@ -59,25 +58,12 @@ public class MovementAscend extends Movement {
             return COST_INF;
         }
         // we can jump from soul sand, but not from a bottom slab
-        // the only thing we can ascend onto from a bottom slab is another bottom slab
-        boolean jumpingFromBottomSlab = false;
-        if (srcDown.getBlock() instanceof BlockSlab) {
-            BlockSlab jumpingFrom = (BlockSlab) srcDown.getBlock();
-            if (!jumpingFrom.isDouble()) {
-                jumpingFromBottomSlab = srcDown.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM;
-            }
-        }
+        boolean jumpingFromBottomSlab = MovementHelper.isBottomSlab(srcDown);
         IBlockState toPlace = BlockStateInterface.get(positionToPlace);
-        boolean jumpingToBottomSlab = false;
-        if (toPlace.getBlock() instanceof BlockSlab) {
-            BlockSlab jumpingTo = (BlockSlab) toPlace.getBlock();
-            if (!jumpingTo.isDouble() && toPlace.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
-                jumpingToBottomSlab = true;
-            } else if (jumpingFromBottomSlab) {
-                return COST_INF;
-            }
-        } else if (jumpingFromBottomSlab) {
-            return COST_INF;
+        boolean jumpingToBottomSlab = MovementHelper.isBottomSlab(toPlace);
+
+        if (jumpingFromBottomSlab && !jumpingToBottomSlab) {
+            return COST_INF;// the only thing we can ascend onto from a bottom slab is another bottom slab
         }
         if (!MovementHelper.canWalkOn(positionToPlace, toPlace)) {
             if (!context.hasThrowaway()) {
@@ -189,9 +175,8 @@ public class MovementAscend extends Movement {
             return state.setStatus(MovementStatus.UNREACHABLE);
         }
         MovementHelper.moveTowards(state, dest);
-        if (jumpingOnto.getBlock() instanceof BlockSlab && !((BlockSlab) jumpingOnto.getBlock()).isDouble() && jumpingOnto.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
-            IBlockState from = BlockStateInterface.get(src.down());
-            if (!(from.getBlock() instanceof BlockSlab) || ((BlockSlab) from.getBlock()).isDouble() || from.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.TOP) {
+        if (MovementHelper.isBottomSlab(jumpingOnto)) {
+            if (!MovementHelper.isBottomSlab(src.down())) {
                 return state; // don't jump while walking from a non double slab into a bottom slab
             }
         }
diff --git a/src/main/java/baritone/pathing/movement/movements/MovementFall.java b/src/main/java/baritone/pathing/movement/movements/MovementFall.java
index 0cb9780a..e82640d2 100644
--- a/src/main/java/baritone/pathing/movement/movements/MovementFall.java
+++ b/src/main/java/baritone/pathing/movement/movements/MovementFall.java
@@ -27,7 +27,6 @@ import baritone.pathing.movement.MovementState.MovementTarget;
 import baritone.utils.*;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockFalling;
-import net.minecraft.block.BlockSlab;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.init.Blocks;
 import net.minecraft.init.Items;
@@ -55,10 +54,8 @@ public class MovementFall extends Movement {
         if (!MovementHelper.canWalkOn(dest.down(), fallOnto)) {
             return COST_INF;
         }
-        if (fallOnto.getBlock() instanceof BlockSlab) {
-            if (!((BlockSlab) fallOnto.getBlock()).isDouble() && fallOnto.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
-                return COST_INF; // falling onto a half slab is really glitchy, and can cause more fall damage than we'd expect
-            }
+        if (MovementHelper.isBottomSlab(fallOnto)) {
+            return COST_INF; // falling onto a half slab is really glitchy, and can cause more fall damage than we'd expect
         }
         double placeBucketCost = 0.0;
         if (!BlockStateInterface.isWater(dest) && src.getY() - dest.getY() > context.maxFallHeightNoWater()) {
diff --git a/src/main/java/baritone/pathing/movement/movements/MovementPillar.java b/src/main/java/baritone/pathing/movement/movements/MovementPillar.java
index fecd79ec..481553fa 100644
--- a/src/main/java/baritone/pathing/movement/movements/MovementPillar.java
+++ b/src/main/java/baritone/pathing/movement/movements/MovementPillar.java
@@ -150,7 +150,7 @@ public class MovementPillar extends Movement {
             if (playerFeet().equals(against.up()) || playerFeet().equals(dest)) {
                 return state.setStatus(MovementState.MovementStatus.SUCCESS);
             }
-            if (fromDown.getBlock() instanceof BlockSlab && !((BlockSlab) fromDown.getBlock()).isDouble() && fromDown.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.BOTTOM) {
+            if (MovementHelper.isBottomSlab(src.down())) {
                 state.setInput(InputOverrideHandler.Input.JUMP, true);
             }
             /*