Wish me luck - just ordered a J-Station from Musician's Crutch to use with the QS-8. $99 - couldn't pass it up.
If It doesn't work out, I've got an Epi 335, a Rhodes 73, a Clav D6, and a Hammond (but I'll need an adaptor) I can use it with. So really a no-brainer, but I'm hoping the QS-8 and my other synths will benefit from some DSP/ amp modeling.
Theoretically, high impedance to high impedance shouldn't be a problem, but there's that whole level thing, especailly an issue for the Rhodes. Might need to invoke my AudioBuddy to bring the level up. We'll see.
Daf