I know on cars when using a MLS gasket, they want a very smooth finish, almost mirror like on the head and block.
I know it looks almost like a sand blasted finish but it's as smooth as glass, you can rake your fingernail across it and you can't feel a thing, feels like your scratching glass.
I'm sure you could use any gasket you wanted to without any problems, Charlie was recommended to do my head work by three different people in the industry, and he preps all the heads for a top tier Pro race team running YXZ's, so I'm very confident in his work.
Buck I was very suspicious about the lowball price myself, but figured what the heck. I got to admit I was very surprised about being the first one to open the OEM box, and even more shocked to see the valve seats, guides and exhaust studs installed, HOME-RUN. I'll keep a eye out for you brother and hit you with a PM if I find a deal on another one, new or used.