It's not really possible to set up the B Quad, is it? Correct me if I'm wrong, but the B-Quad doesn't have a truss rod in the neck. If you don't like the exact neck relief the neck was built with, too bad.
The Piezo bridge on that bass really sings. I remember when I tried one out for an hour or so in the 90s when one was hanging new in my local Peavey dealer I really liked the Piezo but couldn't get much tone that I liked from the magnetic pickups. I ended up buying a new old stock Palaedium on that four string hunt. Much more my style then and now.