that.

If someone feels like modifying the Moog VCF to make it a Vox/Thomas Wah, I'd be eternally grateful. But it's pretty clear I don't have the skills to take this over the finish line.
   

I have been using Fon's Moog VCF as a wah pedal for a while, but to get an effect that works fully to my ear I also use the Glame Analog bandpass filter. The two filters are on a Jack-rack with the frequency and the input gain of the VCF and the center frequency of the bandpass all set to the same midi CC which I control with a footswitch. The reason for the input gain was that I found the perceived volume dropped off at the higher ranges of the wah. This is all linear since as far as I know, Jack-rack can only do linear. I might try to set this up in AMS which can do log which might sound better.

Not an auto-wah, but good for guitar wah.