They do sound good! But there's a bit of corrosion showing up on the rails where the original black finish wore off: not quite the metal look that I want long-term, so I'm going to have to address that in the short term. (I will not be using steel wool, heh.)What? On those rail pickups? I think they look badass. I'll bet they sound great, too. I wouldn't worry about it.
I thought that pickup covers would protect them from this kind of problem developing in the long run, although to be fair I won't be playing 35 years from now! So you're right, simply cleaning up the rails and applying a new protective coating is probably the best idea.