AG burr finish

I read a car craft article about a pock marked combustion chamber finish. like the finish of a golf ball done by a nail set or something. It was totally opposite of what that rag had been preaching for years (port and polish, knock down high points for pre-ignition reduction, etc) that it took me by surprise that they would even publish that. Check out this fish scale finish on youtube, Veicomer does alot of this stuff.