Alright then. What’s the correct way and incorrect.I don't think there is a when .
It's more the how too resurface a tire without hurting it .
At the track the rubber finger disc works well without altering the surface .
Ten 4 .If the karts on the stand in the pits with dirty tires spinning on rear axle someone using a 4" high speed grinding wheel ( DRY ) thinking there resurfacing, would qualify as WRONG WAY !!