Jean-Luc Pickguard

God's Magic Finger - The Residents

I have one of these, it was my main bass for my previous band (with EMGs and a hi-Mass bridge) and I played it a lot. I really like the neck finish. It never got grubby though as I always wash my hands before playing.

Marching to the Sea - The Residents

Sell American - The Residents

King Kong - The Residents

Boots - The Residents

Calamari Lady - The Residents

Ship of Fools - The Residents

Bottom right: D1 & D2 appear to be a classic arrangement of clipping diodes - It'll probably be these providing any dirt rather than the valve.

Keep Torquay - The Residents

Sitting on the Sand - The Residents & Renaldo & the Loaf

The Confused Transexual - The Residents

Dog glue - The Residents

The Dying Oilman - The Residents

Cry for the fire - The Residents

I have had sets of extra slinky (45-95) cobalt flats on two vintage pro thunderbirds for at least a couple of years and they're still in perfect condition on both basses. I use fast fret or Dunlop ultraglide 65 string conditioner regularly, so if the issue isn't isolated to specific batches, that *might* be the answer to prevent corrosion appearing.

Handful of Desire - The Residents x

Santa Dog - The Residents

The evil disposer - The Residents

The bunny boy - The Residents

Elevation - The Residents

Shame on me - The Residents

Dinah and the unclean skin - The Residents

Secret Message - The Residents

Mark of the Male - The Residents