the curse of drawing my own overlays means few years pass and i look at the art and go "wow thats shit i could do way better now" can. can i do that. can i upload new custom overlay for a pet that already has one and then swap them out or is there some restriction to it, like a completely different design bc you just completely changed the pet's character vs. the same guy, just slightly to the left. idk couldn't find anything like that on the overlays page or faq, my guess is that i'm the only idiot on site willing to waste csc like that

yes, you can always change the overlay of a pet even if they already have one. however, i don't know for sure if there's any limitation on how different it has to be from an existing overlay you've uploaded in the past. my understanding is that as long as it's your image to use and it abides by all other rules, you can do whatever you want; after all, you're the one paying to upload it. BUT if you want to be certain you'd have to file a ticket.
yes you can! this is the case for two pets i have which have same design but different artist. unlike CWs, you can have multiple overlays for the same character of the same design and swap between them anytime.
if the change is more along the lines of 10px to the left, i would just make note of it in the "additional" section so the mod screening these isn't thinking it's an accidental reupload.
excellent news, thank you. i cant stand looking at the old art of my main battler all the time, time for a change xD
