There's a lot of things people do because "that's the way it's always been done". Some of those things hold up under testing and some are shown to be unnecessary. Big Stick takes particular satisfaction in going against the grain on things that have always been done a particular way. He's been posting up itty-bitty groups from hacksawed and otherwise violated barrels for probably two decades. The funny thing is, he has a Manson crowning tool kit.Well, I'll just have to take your word for that. Flap Sander to "finish a barrel" is something PRS and other competition shooters just wouldn't do, EVER!!