I was having the same problem, so I got a 5 string... (my metal band was tuned to B).
the whole changing the tune is not good for the neck, it just kills it slowly... if you can afford having another abss.. I would recomand it...
try other basses, maybe a 5string will be the answer to yor questions (maybe insted of owning 2 basses own 1 5stringer...)
I tried the 5string and found out it wasn't for me, now I have 1 bass tuned on B (BEAD) and I wanna get another one to go on a EADG tune.
hope it helpd...
be the way, I use 135 gauge for the low B, it takese a little time to get used to, but it has the best sound...
hope it helpd
