Quoted from Mikala:Sanding! Started with 800, 1000, 1500, 2000, 2500, 3000. Finished off with Mother’s Mag. Takes a lot of time, but it’s worth it. I had a lockdown bar that was so bad, I figured I could not make it look any worse. I actually started with 400 grit and worked my way up. It ended up being one of my best looking bars.
So it is just wet sanding? That looks great - I have to give it a shot.
A little off topic - would a tumbler work well for bringing a shine to post screws or should I just get them plated?