For the most part, I dislike fender welting so I put my AVATAR car together without welting though I do have some thin Teflon strips between the fenders and the body to stop wear rubs and squeeks. I made sure that I also sealed it underneath well to keep rain and crud out - but as yet haven't had it on the road for one major reason - the upholsterer has a full shop. I also painted it starting with a couple of good coats of epoxy. 2K, then my BC/CC.

A good many of the 'A's I've seen at shows don't have welting.