There is a bit of concern over this and it is something that I will address when we get closer to the goal. I plan to do a survey at that time to help gauge the overall interest of the supporters we have at that time. The big problem is that (unless we get somewhere in the $15k to $20k range) I can only order one size of purple and orange. So the easiest solution is to upgrade everything to 4x6 (some people would prefer this size) but then people that prefer 3x5 will get only the larger size. Another option is to stick with one size for purple/orange, and then allow each backer to specify which size baggies they want for the rest of the colors (all 3x5, all 4x6, or half and half).