I attempted to just correct tension, but it was too far gone, so just starting from scratch was actually easier. I probably spent 10 minutes trying to tension before I said **** it and just redid the damned thing. Probably took about 30 minutes. Fastest wheel yet.

If your spoke tension was good to begin with, then it will stay that way unless something goes wrong (i.e. accident). He's crashed at least once, and just doesn't want to tell me. It's pretty obvious.