weird problem

[Granny Gremlin]

That would make sense - haven't checked the schem yet, but if the modes have different switch poles for each effect/pickup (becuase each effect applies to only one pup) then yeah.  I hope that's what it is, because that would be an easy and non-intrusive fix.  I haven't had to bend back the leaves of that switch yet (hence my unfamiliarity) so I am due - everyone I know who has /had one has already had to do it at least once.

[doombass]

I recall discussions at the old Dudepit involving the RD switch issue. Let's hope that's the case on yours. Keep us posted once you've examined it further.