Voila!
http://www.youtube.com/watch?v=MwZXzrLlyAg
There is a on-off-on version of the waveform switch which makes for a nice and easy way to turn off the VCO. That with the gate/env on switch makes this mod my #2 favorite mod behind the 2nd VCO.. For the record, I used a 47K/10uf combination per Herr Guests instructions..

