When I started playing bass lines for the Waytes, Udalrich was THE bass player with his trombone. The agreement was he could keep the interesting bass lines (and there are a few) and I would take the boring ones. They weren't boring for a new bassist! I still like simple bass lines so I can take in what else is going on around me. I don't mind a couple of fast bass runs in a gig, but if it were all like that, I'd be leaving out LOTS of notes on purpose.