Personally, if they are going to do this, I'd appreciate if the sets are quite different from each other. For example ones that work are Topps vs Topps Chrome - ones I don't think work as well would be Topps and Topps Opening Day (I get it is a timing thing which is supposed to be the difference - but that doesn't seem like "enough" to me. I guess bottom line is, if people will buy enough of them, the card companies will churn out the sets...
Came away with another (2nd) 1991-92 Pro Set Platinum Clark, and another (up to 18 cards in the set now) 1991-92 O Pee Chee Sharks and Russian insert set - at least they make it clear this is the Sharks checklist.
Just the couple cards - that's it...
Getting a number of 2004 Leaf Rookies and Stars set so it moving along quickly.
Through 3380 cards:
|- Complete 2007-08 UD McDonald's Checklist Subset (6 cards)|
|Inserts / Var Kept||106||7|
|Doubles Inserts / Var||25||1||42||47|