Geno,
I got to thinking about this concept earlier this year during the "400 subjects" topic on T205 which had some interesting debate.
With Topps, or any other typical numbered set, it's pretty obvious where the set starts and begins.
The backs of T205 and T206 hint to the amount of cards there should be, yet as mentioned , most in the hobby have'nt restricted those sets to just the same back and a unique front.
I don't know how I feel about the theory of T206-1 to include just the 150 subjects, as that would still indicate mixed backs.
I think maybe our beloved T205 should be 11 sets, not one.
Seven of those sets actually claim 400 subjects while Broadleaf, HLC, Polar Bear and Drum only claim "assorted designs".
So you've convinced me that while I thought I had a complete t205 basic set, I don't have anything except maybe 8 partial sets.
It also means I haven't started the Broadleaf, Hindu or Drum sets yet...
T206 Monster needs to be split into 15 sets, discounting Ty Cobb back.
This means we've all got a lot of work to do...heading to BST now to get crackin' on my sets