help w/SD 2 & bouncing

You can record the ketron audio output onto a track through your sound card. Sonar sends your MIDI to the ketron while capturing the audio. It's slow, but you could think of it as being like one of those VSTi's that doesn't work right for fast bounce. Even better, pretend you are working in the era before there were VSTi's. And maybe look forward to the day that someone makes a ketron SD 2 emulation VSTi.
 
If you have multiple voices on multiple midi channels, and you'd like to have different effects on each, record each onto its own track. If you are mixing with other audio or softsynths, you can now mute or archive your midi tracks. Then you can mix and export the whole song.
 
You've discovered the downside of external synths.

Same here, Dave!
Bill B