Finally got around to shielding the inner cavities of my tele tonight. While I was at it I swapped out the bridge pickup (Seymour Duncan Broadcaster for a Lindy Fralin Blues Special). Had everything all clean and tidy, put it all back together, restrung it an plugged it in for a test... and... no sound. I couldn't figure out what it was that I'd done wrong. I opened up the control panel and all the solder joints were intact, all the wiring was correct. Then I realized I'd forgotten one little thing; while I had indeed soldered all the overlapped copper foil shielding inside the cavities - I had NOT soldered a connecting wire from the shield itself to the ground. But surely this couldn't be the cause of having no signal. Opened it up, soldered a wire from the shield foil to the ground. Closed it up. Plugged it in. Boom. Worked like a charm. Who knew? (Surely I didn't) The only remaining issue is that the bridge pickup seems overly microphonic for some reason.