I know in my neck of the woods, central Alabama, a good machine shop will always take a **** hair off the heads even if they are perfectly flat. That is a big plus if you go from metal gasket to composite so there isn't a loss of compression. But congrat on having your girl up and running. I'm figuring while mine is down, n I have easy access to everything, I'm gonna do the 3 amigos fix and might even get my heat shields powdercoated while I'm at it. Make her look real pretty under her dress