Hey Billy thanks for the quick help –
Looks like you’re right – once I adjusted the switch a bit I got more tone control out of the Bass knob. I definitely need to redo this input/channel configuration as your list of components involved here is obviously crucial with the switch being right.
I also double checked my voltages on the trimpot/Q1-4 areas and I got one adjusted more within the 4.5-5.5 range. I think each trimmer was set to about 4.8-5.1 ranges.
Wilkie I gotta admit – this one is really quite amazing!! Possibly one of the most amp-like pedals I’ve ever built up – well done.
Consider this one fixed 😀 Thanks again, Billy!