OK, the U87 clone build is almost complete. The capsule issue I was having is resolved, and it ended up being some sort of fluke. I got it back in the mail, today, and installed it, and it works fine. That mic seemed a little quieter (maybe 2 dB) but that's not uncommon in U87 style mics due to inconsistencies in the FETs. Because OCD I swapped out the FET with another and got lucky. Sounds the same to me now. Next pic will be a glamour shot with shock mounts and road cases!