Does the NEC permit brazing for connections to ground electrodes?
Actually 35 some odd years ago we approached the Airport and the FAA with the same question and they had no problem with it, and sent out a memo that it was ok and met miltary spec. In my mind Cadweld is just another method of brazing but AHJ may have a problem with it if it isn't familiar with what everyone else is doing. Their argument is based around the fact that everyone else is doing Cadwell it works so that's what we want and to be fair that's not a bad argument.

I know I keep beating the same drum but if you have the time I would submit it as a question to the IAEI (the international association of electrical inspectors). They publish answers every month and if you can get them to buy off on it. It would be awful hard for an inspector to go against his own association.