I've owned the CVP-509 for over a year now. Using it to teach lessons - and thoroughly enjoying its Tyros 3 characteristics. I really miss the mod wheel too, and the SA2 buttons, but the pedals replace those controllers and are assignable. And very useable. But having to use a pedal instead of a wheel is quite different. All in all it's a fabulous instrument and even after a year, I'm still in awe.
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Tim Schaeffer
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YAMAHA CVP-509 / Korg Pa300