I have taken my Alembic on almost every job since I got it last June. Though I long for the day I can carry two Alembics to a gig, right now my Persuader 5 is being joined by an Electroline 535 PMM fretless, (Rick Turner) and sometimes my upright. All three are joining me for an upcoming set of Christmas Concerts.

I haven't played a non alembic bass at a gig snce 1996 when I got my epic. I used to take my old precision as a backup in case of string breakage but never needed it.  
 
Graeme

Apart from upright gigs, not since i got my SJ ten years ago.  Except one Haloween gig when the optics just cried out for my red Les Paul bass. There's just no good reason to use anything else.  Except maybe Halloween.

it's very rare im seen without my alembic.

Recently, I aggravated an old shoulder muscle injury that makes it hard to play my SCSD for a whole night, so I've been playing my NS Design OmniBass (electric upright) for my blues gigs. Now that my Rogue is here, I can't wait to play it out, but my shoulder still suggests my EUB will be sharing the bill.