I try to keep up with 1/1s equal to the number of Homeruns Cutch hit with a team.
Andrew McCutchen has had 10 homeruns with the Phillies. I am pretty sure I am close to that number.
Here is a 2019 Topps Museum Blank Back Topps Vault 1/1 that I bought last year.
Do you try to have any types of cards equal to a stat of that player?