Forgive me -- I did searches -- and I've been out of the pedal loop for a long time. Dang, there seems to be a million cool gadgets out there on the market!!! I need a super quiet and non tone robbing A/B line switcher to toggle between 2 electric basses -- one active & one passive <or> an upright bass & one electric. So far the ones that look decent for under $100 are the: Radial Bigshot I/O Boss LS-2 Obviously there are more expensive options like the Radial Bass Bone products -- maybe even the Radial PZ-Pre for my upright. Anyone have experience with any of these? I just want a simple A/B switch without too many bells & whistles.