Took my new (old) MX-8 single barrel to his new place about a month ago because it looked, ever since I bought it, like the milling on the rib had been worn off from 3+ decades of use. The O/U rib was perfect, but the single looked like crap. Il Maestro informed me that it wasn't worn, but it was "clogged up".
Twenty minutes later after a little wire brush treatment and a spot of cold blue, I've got an as-new rib on the single. He's good and I'm occasionally an idiot.
I also enjoyed meeting Tim and holding a brief wood clinic while in the shop. Two very capable gentlemen.
Mike Mann