Cgs synth

There's a small debate going on over on Muffwiggler about the modes of your LPG. We believe it runs as per most LPGs - i.e. the DPDT centre off switch is used to select either VCA, LPG (i.e. both) or VCF modes of operation. However, the chap who will be creating panels for this suspected it may only offer two modes (VCA and LPG) so we just wanted to check which is true in order to be sure, as there isn't a schematic for us to check against. If you'd be so kind as to clarify, that would be much appreciated.

Thanks,

Dave.