I’ve carried in a CB supertuck for a couple years, and sometimes the Kydex makes marks on the gun, but it always rubs off. I don’t think it’s ever made a permanent mark. As for solutions, I would maybe email the crossbreed customer service and ask them. I’m sure they’ve had other people ask the same question, and I’ll bet they have some suggestions. Good luck!
“Owning a handgun doesn't make you armed any more than owning a guitar makes you a musician.” - Jeff Cooper