"I currently don't have a CV/midi interface
Anyway I came across Silent Way VST CV/Gate/modulation thingie, and decided to give it a shot with my modded Roland SH2.
I had a tech add in VCA and VCF CV inputs10 years ago, but I never got around to testing it :)
The Silent Way site doesn't list the Focusrite Saffire Pro 24 DSP as DC coupled audio interface that will work with it, but from a quick try with the LFO module into my SH2's VCA and VCF CV inputs, it sure works!
Sweet!!! :D
It also just adds onto the SH2's existing modulation, or subtract I guess, if I use negative polarity"
---
I went to grab a link to the Expert Sleepers site for this post and see they posted an update today:

21/04/11 12:17 Filed in: software updates
Silent Way v1.6.7 is released. This version adds an ‘output configuration’ option to the VST versions of the Silent Way Voice Controller plug-in (Mac OS X and Windows), allowing the plug-in’s outputs to be presented to the host as either a 6-channel bus, three stereo busses or six mono busses.
Download now from the downloads page. Note that there is an updated version of the user manual for this release."