I'm planing to buy buy some hipshot tuners. I really want to relic them. I've read about using pool acid and etching salutation, but I live in Japan and things aren't a easy to find as stuff back home. Well actually I think I may have found etching solution. I've read about using vinegar just like you would with pool acid by only fuming them. It's a slower proses, so I think it may be easier to monitor. It also just seems safer and cleaner. I don't want to relic them completely. Just enough to catch up to everything else on my 15 year old jazz parts bass. Maybe just a little patina to take the shine away. Anyway has anybody tried using vinegar to relic? Also I have read when relicing that you should try not to get what ever your using into the gears, and it seems pretty impossible not to with bass tuners. I was thinking about taking the tuners apart and not including the gear and taping off the bottom part of the shaft as not to ruin them. Does that sound about right?