Bay Cycles has a chemical (what they call acid) dip & if you tell Joe I sent you he will do a good job. As with anything, sometimes you just have to hang around the shop a bit & they will take care of you.
I have had 2 frames done there & was very pleased with the result. On my current bike I asked that he go light on the powder so that the lugs & detail (Reynolds stamp & Campagnolo stamps) on the frame were still visible. Done & Done. 100 bucks.
The best part is if you don't like the result, he will redo it for you for free.