Well, the Topps "Common" is actually an SP.
One that took some time to look up, as it's a second series number, and says second series right on it.
The checklist of second series SPs doesn't include that number.
But the checklist of update Sps does. Apparently they included a new batch of second series SPs in the update series.
Could it be any more confusing?
And since I was looking at checklists I checked the Pannini ones too. They are inserts, just stuff like rated rookies with the exact same design as Donruss and extensions of the Donruss numbering.
Why even give the sets names?
I think I'll make a card set with no name, and no coherent series. Maybe I'll do the wrappers with a green stripe and just "baseball cards" Like the old 70's generic products were. Hey, if I just call it "sports cards" I won't even have to stick to baseball........