After 6 months, I got my 5 string bass back. New Curbow neck, new finish, but same body and same electronics. Since getting it back, the B string seems much quieter than the other strings. It's been a while since I've played this bass, but I don't remember the B being so dead. I've tried a couple different strings and even tried throwing a lighter guage string on it and tuning it up to E and it sounds different than the 'real' E string. Any ideas what could cause this?