diff --git a/gradle.properties b/gradle.properties
index 15ebfa8..52499b6 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 # Sets default memory used for gradle commands. Can be overridden by user or command line properties.
 # This is required to provide enough memory for the Minecraft decompilation process.
-mod_version = 1.4.7-2.2.2r
+mod_version = 1.4.7-2.2.2s-pre
 modid = gravisuite
 minecraft = 1.4.7
 minecraft_forge = 1.4.7-6.6.2.534
\ No newline at end of file
diff --git a/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseExcavator.java b/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseExcavator.java
index cde4c0b..6708b75 100644
--- a/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseExcavator.java
+++ b/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseExcavator.java
@@ -59,10 +59,11 @@ public boolean onBlockStartBreak(ItemStack stack, int x, int y, int z, EntityPla
             if (refStrength != 0.0D) {
                 int adjBlockId;
                 float strength;
-
                 MovingObjectPosition mop = Helpers.raytraceFromEntity(world, player, true, 4.5D);
+                if (mop == null) { // cancel 3x3 when rayTrace fails
+                    return false;
+                }
                 int xRange = radius, yRange = radius, zRange = radius;
-
                 switch (mop.sideHit) {
                     case 0:
                     case 1:
@@ -85,7 +86,7 @@ public boolean onBlockStartBreak(ItemStack stack, int x, int y, int z, EntityPla
                             Block adjBlock = Block.blocksList[adjBlockId];
                             if (adjBlockId != 0) {
                                 strength = adjBlock.getBlockHardness(world, xPos, yPos, zPos);
-                                if (strength > 0f && refStrength / strength <= 10f) {
+                                if (strength > 0f && strength / refStrength <= 10f) {
                                     if ((ForgeHooks.isToolEffective(stack, adjBlock, world.getBlockMetadata(xPos, yPos, zPos)) || canHarvestBlock(adjBlock)) && harvestBlock(world, xPos, yPos, zPos, player)) {
                                         mined++;
                                     }
diff --git a/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseHammer.java b/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseHammer.java
index a32f474..3c90716 100644
--- a/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseHammer.java
+++ b/src/main/java/reforged/mods/gravisuite/items/tools/base/ItemBaseHammer.java
@@ -70,10 +70,11 @@ public boolean onBlockStartBreak(ItemStack stack, int x, int y, int z, EntityPla
             if (refStrength != 0.0D) {
                 int adjBlockId;
                 float strength;
-
                 MovingObjectPosition mop = Helpers.raytraceFromEntity(world, player, true, 4.5D);
+                if (mop == null) { // cancel 3x3 when rayTrace fails
+                    return false;
+                }
                 int xRange = radius, yRange = radius, zRange = radius;
-
                 switch (mop.sideHit) {
                     case 0:
                     case 1:
@@ -96,7 +97,7 @@ public boolean onBlockStartBreak(ItemStack stack, int x, int y, int z, EntityPla
                             Block adjBlock = Block.blocksList[adjBlockId];
                             if (adjBlockId != 0) {
                                 strength = adjBlock.getBlockHardness(world, xPos, yPos, zPos);
-                                if (strength > 0f && refStrength / strength <= 10f) {
+                                if (strength > 0f && strength / refStrength <= 10f) {
                                     if ((ForgeHooks.isToolEffective(stack, adjBlock, world.getBlockMetadata(xPos, yPos, zPos)) || canHarvestBlock(adjBlock)) && harvestBlock(world, xPos, yPos, zPos, player)) {
                                         mined++;
                                     }
diff --git a/src/main/java/reforged/mods/gravisuite/utils/Helpers.java b/src/main/java/reforged/mods/gravisuite/utils/Helpers.java
index 8d9b227..31b97ad 100644
--- a/src/main/java/reforged/mods/gravisuite/utils/Helpers.java
+++ b/src/main/java/reforged/mods/gravisuite/utils/Helpers.java
@@ -143,15 +143,15 @@ public static MovingObjectPosition retraceBlock(World world, EntityLiving entity
         return block == null ? null : block.collisionRayTrace(world, x, y, x, var5, var7);
     }
 
-    public static void dropAsEntity(World var0, int var1, int var2, int var3, ItemStack var4) {
-        if (var4 != null) {
-            double var5 = 0.7;
-            double var7 = (double)var0.rand.nextFloat() * var5 + (1.0 - var5) * 0.5;
-            double var9 = (double)var0.rand.nextFloat() * var5 + (1.0 - var5) * 0.5;
-            double var11 = (double)var0.rand.nextFloat() * var5 + (1.0 - var5) * 0.5;
-            EntityItem var13 = new EntityItem(var0, (double)var1 + var7, (double)var2 + var9, (double)var3 + var11, var4.copy());
-            var13.delayBeforeCanPickup = 10;
-            var0.spawnEntityInWorld(var13);
+    public static void dropAsEntity(World world, int x, int y, int z, ItemStack stack) {
+        if (stack != null) {
+            double offset = 0.7;
+            double xPos = (double)world.rand.nextFloat() * offset + (1.0 - offset) * 0.5;
+            double yPos = (double)world.rand.nextFloat() * offset + (1.0 - offset) * 0.5;
+            double zPos = (double)world.rand.nextFloat() * offset + (1.0 - offset) * 0.5;
+            EntityItem drop = new EntityItem(world, (double)x + xPos, (double)y + yPos, (double)z + zPos, stack.copy());
+            drop.delayBeforeCanPickup = 10;
+            world.spawnEntityInWorld(drop);
         }
     }