Sheldon,
Thanks for the response and the info on the preamp.
The volume pot functions similarly on all the pickup settings. Having just tested it at bedroom volume levels, I can attest to exaggerating the condition previously. The volume doesn't exactly go to zero but there is a drastic drop in volume with only a slight turn of the knob. The "problem" is exacerbated at gig/rehearsal levels. It's not a huge deal, I just prefer a more gradual taper. At some point I'll replace the pot and for now I'll just "tweak" carefully.