I have a no marking skillet that I use a lot and it is very smooth. Got it free, sitting in a barn for thirty years, scrubbed the rust out and started seasoning it. I still use it, it sadly it is not the pan it once was, threw it on the stove to dry it, forgot stove was on. I passed by an hour later to get coffee and the pan was orange. Warped it good. I may try to straighten it just for fun.