Card Identification Forum

I meant to add that I have a PSA 10 2011 Topps Update Mike Trout with a tiny visible stray mark in the lower bottom  I started with 7 of them and it was the only one with the mark.

That's really the fun part: you get to decide what your own parameters are. Beckett, SCD, this site, none of them have complete, definitive checklists for any set. Finding new things and from a variety of sources are what make this corner of the hobby so much fun. 

EDIT:

RE: The 1990-91 Fleer Sam Perkins, one version comes from poly/jumbo packs and the other (the clipped text version) from wax and rack packs. Fleer used two different printers for that set and every card in it can be found in two ways. Some are so minor that even the most die-hard E&V collectors don't bother with them. 

ToppsrBest wrote:

I have been seeing varying opinions on things of this nature. 1990-91 Fleer Basketball Card 43 is another example with 2 VARs listed. It is not a stray mark but I would call it a printing issue. I certainly am not going to argue either way, but I do like hearing the opinions and explanations behind the determining factors.

I do enjoy exploring things like this where the design sort of dictates the most efficient arrangement of the cards on the sheet.  1990 Topps is like that, too.