I seem to recall that old Strat had a plastic switch body....
Silly of me, I guess, but I am trying to come up with a very unique looking knob setup for my "Number One" Strat-esque guitar that's coming back to me in a couple weeks after being out on loan to a fellow musician here locally. With cream humbuckers and gold plated brass trim rings, I thought a solid brass knob/tip might look good on an all-black guitar with a black pickguard, but I remember that buzzy-ness I encountered once and thought I would ask the question.
I found some really nice, solid brass, gold plated knobs from GFS with pearloid inserts in the top that might look better than the old cream colored plastic knobs you see everyday...