NegationOfNegation, I just tested and could not hear any unusual noise when I used the switches or turned on the pedal. may have some that I could not identify with my ears, but if I have it, it is not significant at all.
And I think the pedal its it, you'r right with the HiFi mode on, the 3Q doesnt nothing to the sound. 3Q only for the normal rangemaster mode, LoFi.
For those who want a great sound of rangemaster but think it doesnt fuzz enough its a good choice, with the HiFi mode.
and the 3Q Supplies well the necessity when you change guitars, pickups, amps...
Thank you everyone and Happy New Year!