I've been thrilled with the fact that GVI (running in VStack) has cured my PC's constant crashing. However, today I needed to use a patch whose multiple keyswitch dimensions could only be accessed by GS3. So I tried opening GS3 as a Rewire slave (with VStack as the master). I found I could get the audio from GS3 into VStack via Rewire (by playing the onscreen GS3 keyboard), but I couldn't figure out how to trigger the GS3 sounds with my MIDI keyboard or sequencer. My main sequencer is DP, running on a different computer. How should the MIDI info be routed? Does it have to pass through the Rewire master (I don't think you can do this in VStack), or should I send the MIDI directly to GS3?
I would take Rewire and VStack out of the loop assuming you have a suitable midi in for the G3 computer, and a sound card that can send audio back to your DAW. As a Standalone, all G3 needs is a midi-in and audio out.
Sorry, I should have explained a bit more. GS3, with I've used for years as you've described, has been a nightmare of instability. GVI, by contrast, hasn't crashed my computer once. When you use GS3 as a Rewire slave, you don't have to use the custom memory config for your PC - theoretically, you get the benefits of GS3 without the instability (there are a bunch of things you can do with GS3 that you can't with GVI, which is why I'm interested in this).
So thanks for replying - but I'd still love to hear from anyone who has gotten GS3 to work as a Rewire slave, especially with VStack.
BTW, this idea just occured to me. You could download Chainer VST demo, which is a non-expiring but crippled version of Chainer, and just load the VST wrapper in there. Chainer is very CPU-friendly and doesnt gobble as much as dedicated hosts.