On the rare occasion that I have picked up a union gig I have been able to supplement my pay by neeeding to play a 5 string, 4 string fretless, and an upright…I have always wondered why some studios, bands and sessions calls for "bring your 5 string bass". If I brought my 4 string BEAD it didn't work out ... for them. Is it "for your eyes only" ? Or is it like the old days when Herbie Flowers played his iconic bass intro to Lou Reeds "Walk On The Wild Side" got more pay if he played one track with upright bass and the other track with electric bass?
Like, if your bass has one more string it's 2 dollars more per hour?
The way I use a capo on my fanned fret BEAD bass is actually a stop, to stop me from playing too low notes all of the time.