When you mention "trad", I think I get you. Somewhere on this thread I read a post saying people will take you more seriously with a Fender in hand as opposed to some unknown brand. People in person have said similar things, they have this idea that your brand of bass reflects your professionalism and dedication to your craft. But will a G&L make people question my dedication? Not that it matters, as your playing is what really counts, but...
You can't imagine the ration of crap I had to take the time I brought my 6 string fretless Alembic to a Blues gig! (My thinking was it would work well because the extended lower range made transpositions and blues scales a snap and the extended upper range perfect for solos) And it did work well...musically...but the "look" was all wrong. Even *I* had to admit it! So I was a bit surprised when I noticed local blues bass players suddenly playing G&L L2500 like mine! And everybody was digging it and nobody said boo about it not being a Fender.
Still I suppose there is no guarantee that you might not be subjected to one of those auditions where they tell everyone who doesn't have a Fender bass to go home! Personally I tell them a G&L IS a Fender bass. It's just a "Late Leo" creation rather than his jazz and p-bass early work.