I got frustrated trying to sand the dirt out of a shooter lane, so I tried using a wire brush attachment on my high speed rotary tool. I didn't want to remove too much material so I used the softest one I had which I think was made of brass??? and I set it to med/low RPM's. Anyway, it seemed to work great on almost all of the dirt (there were 2 really tough spots that are still dirty) while not removing as much material as sanding.
Is it possible that the wire was getting into the small cracks and removing the dirt without removing a bunch of wood, or am I dreaming and it was removing more wood than I think it was? Has anyone tried this before? I want to try it again, but its going to be a couple of weeks before I get to my next playfield project.