Yes, I’m using three stacked 500/500K ohm Audio taper concentric pots and .068 caps (same values as the VP, so sound is very similar). The master stack is volume on the top knob and a dummy on the bottom knob. I might find a use for the dummy knob, maybe a dimmer for some on board lighting - ha.
Fender had a great idea but less than ideal execution. They used low resistance pots which muddied up the sound quite a bit and they didn’t do anything to eliminate the tone knob bleed over between pickups. I’m using 500k pots, so there’s ample top end available and I installed a 250k ohm resistor on the output of each tone knob to completely eliminate bleed over between the two tone knobs. The result is a drastically increased sound spectrum, zero bleed over between the pups and a near hifi quality to the output when both pups are played.
I wasn’t able to find any schematics for a dual pickup, dual volume, dual tone layout WITH a master volume. So I designed the circuit myself, but wasn’t sure if the additional pot would noticeably load the output signal and change the tone of the bass. Much to my relief it didn’t, and in fact works wonderfully. Every dual volume bass should have a master volume in my opinion. It’s just too klunky to adjust two different volume knobs on the fly during a performance or recording. Hence a volume pedal or kill switch or pickup toggle is frequently used instead.
One of the extra unexpected benefits of the master volume - ever notice the sometimes subtle (sometimes not) change in tone on a given bass when you dime your volume knob vs having the volume at 8 or under, you’ll usually hear a boost in the upper mids. I like that sound sometimes (not always) but don’t like that I have to set the on board volume at full on to get it and then back down the volume on the rig to maintain proper overall sound levels. So now I can dime either or both pup volumes for that more aggressive tone but I can dial back the on board master volume to maintain the right sound level. A huge unanticipated plus for me.