I just read about the problem of the nylon gear in the AW-1. They used a nylon gear in order to make the winder quieter, and, of course, the nylon ends up being a wear issue. The nylon gear could be replaced with a brass gear, but the winder then gets noisier. I have heard the AW-1, and thought it pretty noisy as it is (or perhaps I had heard one with a brass gear?)...

Hmm...