[Hondaracer]

They send a little generic form with it which says they do test for the issues noted

So not sure if you’d be able to send just old ones in and get replacements if they actually hook them up to somthing and test tolerances but I’m sure if you’ve got old or original joy cons they would probably just end up getting replaced.

My original release joy cons were quite worn and visibly so, and they went on numerous trips etc. so I can’t tell if it was just the wear or not but these new ones seem to be of higher quality