diff --git a/docs/dsl/save_pdf.rst b/docs/dsl/save_pdf.rst
index a3015f1..b4a3d43 100644
--- a/docs/dsl/save_pdf.rst
+++ b/docs/dsl/save_pdf.rst
@@ -44,7 +44,12 @@ gap
 trim
   default: ``0``
 
-  the space around the edge of each card to trim (e.g. to cut off the bleed margin for print-and-play). Supports :doc:`/units`.
+  the space around the edge of each card to trim (e.g. to cut off the bleed margin for print-and-play). Supports :doc:`/units`. Must be the same for all cards.
+
+trim_radius
+  default: ``0``
+
+  the rounded rectangle radius around the card to trim before saving. Supports :doc:`/units`. Must be the same for all cards.
 
 crop_marks
   default: ``false``
diff --git a/docs/dsl/save_sheet.rst b/docs/dsl/save_sheet.rst
index 1877f41..d2bfc40 100644
--- a/docs/dsl/save_sheet.rst
+++ b/docs/dsl/save_sheet.rst
@@ -54,7 +54,12 @@ gap
 trim
   default ``0``
 
-  the space around the edge of each card to trim (e.g. to cut off the bleed margin for print-and-play). Supports :doc:`/units`.
+  the space around the edge of each card to trim (e.g. to cut off the bleed margin for print-and-play). Supports :doc:`/units`. Must be the same for all cards.
+
+trim_radius
+  default: ``0``
+
+  the rounded rectangle radius around the card to trim before saving. Supports :doc:`/units`. Must be the same for all cards.
 
 rtl
   default ``false``
diff --git a/lib/squib/api/save.rb b/lib/squib/api/save.rb
index e0fc42f..bee6157 100644
--- a/lib/squib/api/save.rb
+++ b/lib/squib/api/save.rb
@@ -58,7 +58,7 @@ module Squib
       else
         tmpl = Sprue.load sprue_file.sprue, dpi
         Graphics::SaveSpruePNG.
-          new(self, tmpl, batch).
+          new(self, tmpl, sheet).
           render_sheet(range)
       end
     end
diff --git a/lib/squib/args/sheet.rb b/lib/squib/args/sheet.rb
index 12af8e1..274646e 100644
--- a/lib/squib/args/sheet.rb
+++ b/lib/squib/args/sheet.rb
@@ -21,6 +21,7 @@ module Squib
 
       def self.parameters
         {
+          count_format: '%02d',
           crop_margin_bottom: 0,
           crop_margin_left: 0,
           crop_margin_right: 0,
@@ -35,6 +36,7 @@ module Squib
           gap: 0,
           height: 2550,
           margin: 75,
+          prefix: 'sheet_',
           rows: :infinite,
           columns: 5,
           trim_radius: 38,
@@ -91,8 +93,12 @@ module Squib
         (count.to_f / columns.to_f).ceil
       end
 
-      def full_filename
-        "#{dir}/#{file}"
+      def full_filename(i=nil)
+        if i.nil?
+          "#{dir}/#{file}"
+        else
+          "#{dir}/#{prefix}#{count_format % i}.png"
+        end
       end
 
       def crop_coords(x, y, deck_w, deck_h)
diff --git a/lib/squib/graphics/save_sprue.rb b/lib/squib/graphics/save_sprue.rb
index 7c9211a..8135fab 100644
--- a/lib/squib/graphics/save_sprue.rb
+++ b/lib/squib/graphics/save_sprue.rb
@@ -2,11 +2,11 @@ module Squib
   module Graphics
     # Helper class to generate templated sheet.
     class SaveSprue
-      def initialize(deck, tmpl, save_args)
+      def initialize(deck, tmpl, sheet_args)
         @deck = deck
         @tmpl = tmpl
         @page_number = 1
-        @save_args = save_args #might be Args::Sheet or Args::SaveBatch
+        @sheet_args = sheet_args # might be Args::Sheet or Args::SaveBatch
         @overlay_lines = @tmpl.crop_lines.select do |line|
           line['overlay_on_cards']
         end
@@ -32,7 +32,7 @@ module Squib
             draw_card cc, card, 
                       slot['x'], slot['y'], 
                       slot['rotate'], 
-                      @save_args.trim[i], @save_args.trim_radius[i]
+                      @sheet_args.trim, @sheet_args.trim_radius
 
             bar.increment
           end
@@ -122,15 +122,11 @@ module Squib
       end
 
       def check_oversized_card
-        all_fit = @save_args.trim.inject(true) do |fits, trim|
-          fits &&
-          (@deck.width - 2.0 * trim)  <= @tmpl.card_width &&
-          (@deck.height - 2.0 * trim) <= @tmpl.card_height
-        end
         Squib.logger.warn {
-          'Card size is larger than sprue\'s expected card size. '\
-          'Cards may overlap.'
-        } unless all_fit
+          "Card size is larger than sprue's expected card size "\
+          "of #{@tmpl.card_width}x#{@tmpl.card_height}. Cards may overlap."
+        } if (@deck.width - 2.0 * @sheet_args.trim)  > @tmpl.card_width ||
+             (@deck.height - 2.0 * @sheet_args.trim) > @tmpl.card_height
       end
 
       def draw_card(cc, card, x, y, angle, trim, trim_radius)
@@ -182,7 +178,7 @@ module Squib
       end
 
       def full_filename
-        @save_args.full_filename
+        @sheet_args.full_filename
       end
     end
 
@@ -202,7 +198,7 @@ module Squib
       end
 
       def full_filename
-        @save_args.full_filename @page_number
+        @sheet_args.full_filename @page_number
       end
     end
   end
diff --git a/samples/sprues/_advanced_sprues.rb b/samples/sprues/_advanced_sprues.rb
index 4dd454a..08a5997 100644
--- a/samples/sprues/_advanced_sprues.rb
+++ b/samples/sprues/_advanced_sprues.rb
@@ -1,11 +1,10 @@
-require 'squib'
+require_relative '../../lib/squib'
 
 # This is a more advanced example of Sprues
 # (mostly so we can have a torturous regression test)
 #  - Uses a custom sprue
 #  - Weird rotations
 #  - Center-positioned
-#  - Uses per-card trim and trim_radius
 #  - Multiple pages
 Squib::Deck.new(cards: 6, width: '2.2in', height: '2.1in') do
   background color: :blue #blue never shows up! Yay clipping...
@@ -18,16 +17,8 @@ Squib::Deck.new(cards: 6, width: '2.2in', height: '2.1in') do
   text str: (0..9).map{ |i| "Card #{i}\n\n" },
        font: 'Sans 32', align: :center, valign: :middle,
        height: :deck, width: :deck
-
-  # Per-card trims just for funsies
-  trims = ['0.2in'] * 9
-  trims[0] = '0.3in'
-  trims[3] = '0.4in'
-  trim_radii = ['10pt'] * 9
-  trim_radii[1] = '0.2in'
-  trim_radii[3] = '0.75in'
   
   save_sheet sprue: 'my_sprues/weird_sprue.yml',
-             trim: trims, trim_radius: trim_radii,
+             trim: '0.2in', trim_radius: '10pt',
              prefix: "advanced_sprues_"
 end