diff --git a/src/coffee/models/crafting/crafting_plan.coffee b/src/coffee/models/crafting/crafting_plan.coffee
index e9715176d..65e3e4793 100644
--- a/src/coffee/models/crafting/crafting_plan.coffee
+++ b/src/coffee/models/crafting/crafting_plan.coffee
@@ -100,16 +100,18 @@ module.exports = class CraftingPlan
             result.push "    #{stack}"
 
         result.push "Start with:"
-        @_need.each (stack)->
-            result.push "    #{stack}"
+        if @_need?
+            @_need.each (stack)->
+                result.push "    #{stack}"
 
         result.push "Use these recipes:"
         for step in @_steps
             result.push "    #{step}"
 
         result.push "To produce:"
-        @_made.each (stack)->
-            result.push "    #{stack}"
+        if @_made?
+            @_made.each (stack)->
+                result.push "    #{stack}"
 
         if _.keys(@_rawScores).length > 0
             result.push "Scores:"
diff --git a/src/coffee/models/crafting/plan_evaluator.coffee b/src/coffee/models/crafting/plan_evaluator.coffee
index 26bf97b32..6525c916b 100644
--- a/src/coffee/models/crafting/plan_evaluator.coffee
+++ b/src/coffee/models/crafting/plan_evaluator.coffee
@@ -17,7 +17,7 @@ module.exports = class PlanEvaluator
         if not plans? then throw new Error 'plans is required'
 
         @_plans = plans
-        @_lastScored = 0
+        @_lastScored = -1
         @_normalized = false
 
     # Public Methods ###############################################################################
@@ -41,7 +41,7 @@ module.exports = class PlanEvaluator
         return if @complete
 
         maxPlanIndex = Math.min @_lastScored + count, @_plans.length - 1
-        for i in [@_lastScored..maxPlanIndex]
+        for i in [(@_lastScored + 1)..maxPlanIndex]
             @_plans[i].computeRequired()
             @_scorePlan @_plans[i]
             @_lastScored = i
diff --git a/src/coffee/models/inventory.coffee b/src/coffee/models/inventory.coffee
index 645e8085b..2b814395d 100644
--- a/src/coffee/models/inventory.coffee
+++ b/src/coffee/models/inventory.coffee
@@ -90,7 +90,7 @@ module.exports = class Inventory extends BaseModel
 
             if qualifiedSlug?
                 newSlugs.push qualifiedSlug
-                newStacks.push new Stack itemSlug:qualifiedSlug, stack.quantity
+                newStacks.push new Stack itemSlug:qualifiedSlug, quantity:stack.quantity
             else
                 newSlugs.push itemSlug
                 newStacks.push stack
diff --git a/src/coffee/models/simple_inventory.coffee b/src/coffee/models/simple_inventory.coffee
index 00a92224c..ffe0248df 100644
--- a/src/coffee/models/simple_inventory.coffee
+++ b/src/coffee/models/simple_inventory.coffee
@@ -66,21 +66,32 @@ module.exports = class SimpleInventory
     localize: ->
         if not @modPack? then throw new Error 'localize requires @modPack'
 
+        changed = false
         newSlugs = []
+        newStacks = []
         for itemSlug in @_itemSlugs
             stack = @_stacks[itemSlug]
+            continue unless stack?
+
+            qualifiedSlug = if itemSlug.isQualified then itemSlug else null
+            if not qualifiedSlug?
+                qualifiedSlug = @modPack.findItem(itemSlug)?.slug
+                changed = qualifiedSlug?
 
-            qualifiedSlug = @modPack.findItem(itemSlug)?.slug
             if qualifiedSlug?
-                delete @_stacks[itemSlug]
                 newSlugs.push qualifiedSlug
-                @_stacks[qualifiedSlug] = stack
-                stack.itemSlug = qualifiedSlug
+                newStacks.push new Stack itemSlug:qualifiedSlug, quantity:stack.quantity
             else
                 newSlugs.push itemSlug
+                newStacks.push stack
 
-        @_itemSlugs = newSlugs
-        @_sort()
+        if changed
+            @_itemSlugs = newSlugs
+            @_stacks = {}
+            for stack in newStacks
+                @_stacks[stack.itemSlug] = stack
+
+            @_sort()
 
     pop: ->
         itemSlug = @_itemSlugs.pop()