Most common uses of each blister:
Style 1 is for Tri-logo (European) Star Wars cards
Style 2 is for POTF '85, but is also used for ROTJ by trimming off the coin section
Style 3 is for Star Wars and Empire (Normal Height)
Style 4 is for Star Wars and Empire (Short)
Style 5 is for ROTJ (Short)
Style 6 is for ROTJ (Tall Narrow)
Style 7 is for ROTJ (Average & Build)
Style 8 is for SW / ESB (Short/Fat w/long foot)
Style 9 is for SW (Short/thin Stature w/long foot)