diff --git a/Gemfile.lock b/Gemfile.lock
index 152232a4..ee5d990d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GIT
 PATH
   remote: .
   specs:
-    compass (0.11.1.d9ca08f)
+    compass (0.11.1.cc26b98)
       chunky_png (~> 1.1)
       fssm (>= 0.2.7)
       sass (~> 3.1)
diff --git a/lib/compass/sass_extensions/sprites/base.rb b/lib/compass/sass_extensions/sprites/base.rb
index f734118a..4710c615 100644
--- a/lib/compass/sass_extensions/sprites/base.rb
+++ b/lib/compass/sass_extensions/sprites/base.rb
@@ -71,16 +71,10 @@ module Compass
         # collects image sizes and input parameters for each sprite
         def compute_image_positions!
           imgs = @images.sort { |a,b| a.width <=> b.width }
-          rows = [::Compass::SassExtensions::Sprites::ImageRow.new(@width)]
-          imgs.each do |image|
-            next if rows.last.add(image)
-            
-            rows << ::Compass::SassExtensions::Sprites::ImageRow.new(@width)
-            unless rows.last.add(image)
-              raise "Image failed to be added"
-            end
-            
-          end
+
+          fitter = ::Compass::SassExtensions::Sprites::RowFitter.new(imgs)
+          rows = fitter.fit!
+
           current_y = 0
           rows.each do |row|
             current_x = 0
diff --git a/lib/compass/sass_extensions/sprites/image_group.rb b/lib/compass/sass_extensions/sprites/image_group.rb
deleted file mode 100644
index 0b251805..00000000
--- a/lib/compass/sass_extensions/sprites/image_group.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-module Compass
-  module SassExtensions
-    module Sprites
-      class ImageGroup
-        attr_reader :images
-
-        def initialize(images = [])
-          @images = images
-        end
-
-        def best_fitting_rows
-          
-        end
-      end
-    end
-  end
-end
-
diff --git a/lib/compass/sass_extensions/sprites/row_fitter.rb b/lib/compass/sass_extensions/sprites/row_fitter.rb
index eaa81bd8..b48f3c23 100644
--- a/lib/compass/sass_extensions/sprites/row_fitter.rb
+++ b/lib/compass/sass_extensions/sprites/row_fitter.rb
@@ -8,6 +8,7 @@ module Compass
 
         attr_reader :images, :rows
         def_delegators :rows, :[]
+
         def initialize(images)
           @images = images
           @rows = []
@@ -15,6 +16,7 @@ module Compass
 
         def fit!(style = :scan)
           send("#{style}_fit")
+          @rows
         end
 
         def width
diff --git a/test/units/sprites/image_group_test.rb b/test/units/sprites/image_group_test.rb
deleted file mode 100644
index 842b11eb..00000000
--- a/test/units/sprites/image_group_test.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-require 'test_helper'
-require 'compass/sass_extensions/sprites/image_group'
-
-class ImageGroupTest < Test::Unit::TestCase
-  def setup
-  end
-
-end
-