Finishing up converting a "new to us" Santana tandem to a flat bar setup with a new fork and Magura HS33 front brake. I wasn't able to come up with a shift lever-FD combination that worked, so with a little machine work I was able to use a Campy friction shifter for the FD (works very well). I haven't decided whether to convert the rear disc to a hydraulic caliper. I'd like to, but it will involve lengthening the hose, and I'm not sure I want to do that before we ride a Zion, Bryce & Grand Canyon tour in a couple weeks.