Yes, I have harped about it before, and it's not a huge problem, but both of these W501s are identified incorrectly on the flips. W501s are true strip cards (imo) and W575-1s aren't. But that is Mr. Burdick's doings.... W501s can usually be identified by their jagged edges at top and bottom.....
http://www.ebay.com/itm/1921-22-W575...414UFQtj_XxQ6Q
http://www.ebay.com/itm/1922-W575-1-...UAAOSwuMZZMh~W
And some W575-1s which are now incorrectly labeled as hand cut by SGC...That said, in their defense, they said they will revisit the idea of these not saying hand cut. I just haven't bothered getting them corrected yet.