With my interest rekindled in my first card collecting passion--GPK. I thought I'd discuss the variations in the Original Series 2 set, and see what others thought. Technically, there are 84 cards in the complete set--that's 42 "a" cards, and 42 "b" cards. Depending on how you look at it, the complete set could be 85 cards, 86 cards, 87 cards, or if you only want one of every version, then it's 131 cards.
The way I see it, a serious collector is just going to want to have 2 complete sets of 84 cards (168 total) to represent the two distinct versions of 131 different cards. That means you're going to end up with 37 duplicates. Of course, you could just go back to the extended version of the single set consisting of 131 cards, but then you'd only be 37 cards short of another complete set. So, here are the 2 versions of the set, the way I see it:
1st Version
#42a, #42b have the Spaz Award on the back
#46a, #46b, #47a, #47b have the name Schizo Fran as card #49b on the checklist back
#49b is Schizo Fran
40 cards with Leaky Lindsay/Messie Tessie puzzle identified on the back
2nd Version
#42a, #42b have the Sneak Award on the back
#46a, #46b, #47a, #47b have the name Fran Fran as card #49b on the checklist back
#49b is Fran Fran
40 cards with Live Mike/Jolted Joel puzzle identified on the back