[quote name='Hot Tub' post='569520' date='Aug 14 2009, 08:27 PM']I love each of my instruments, but the Cort is my "go to" bass, the one I'm most comfortable on, and the one I'd take.
To flip my original question the other way around: How easy/acceptable would it be for me to ask the band to play in the original ("my") key? Given that it's just for a couple of songs, and I've had no rehearsal time?[/quote]
I wouldn't ask the band to change the key. You could make it difficult for the vocalist (assuming it's a vocal number) and you're also asking every other person on stage except the drummer to play it differently as opposed to just yourself changing key. If you make a cock-up on bass at a pub gig, about 2% of the audience will notice. If the vocalist is screeching to hit notes he can't achieve, everyone will notice. If you're not confident about it, then don't get up there.