I just ordered an LR Baggs T bridge and Control X, I think this is very similar to what PRS is using on their SE Piezo. Hopefully it will fit in the hollow wings of the center-block jr! My shop says they have installed similar piezos in electrics before, so I think they should be able to handle it, they may have to put a battery access door on the back or side. I just need to get another Gretsch "G" knob for the new piezo vol/blend control to match the other knobs on my Electromatic. Don't mean to hijack, will post a follow-up thread when I get this done, but thanks for the inspiration and encouragement. A lot easier for me to mod an existing guitar than to bring home an entirely new one in my situation. And I ordered a Fishman NeoD humbucker sound hole pickup to blend with for my piezo-equipped acoustics, so, yeah, I went for it!