Sorry, not mark, but i grew up in a body shop. does that count? Glass bead is perfect for paint removal with low intrusion. It cleans the metal more than etches it. I personally love using it for paint prep. If I were you guys restoring saws I'd be buying a gallon of two part single stage urethane and shooting them with that. It looks very much like the original paint when laid on with a gun and is very durable. A little would go a long way and after all the work your putting into these, it would be worth it.
Glad to hear that the glass beads is the way to go. He does auto restorations. Said it seems to work well, not to aggressive. I probably won't be doing any painting till warm weather arrives. Don't have a nice heated shop. Haven't decide on green paint yet. I have the paint mix numbers written down somewhere that Brad used when he did his. I think its just enamel with hardener added. Price was what I liked.
Gregg,