What'll happen if i take the volume controls on my les paul, put one at 0, and the other at 10 and flip back and forth between them. I've done it before, but I'm afraid it will screw up my electronics, will it hurt my guitar?
as long as you dont go crazy on it it should be fine i do it all the time
What happens is it makes a killswitch effect.

It doesn't do any harm to your guitar, but be careful not to accidentally bork your switch. If it's cheap, it'll break quickly. If it's good it won't break.
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