I just recently acquired a used XTk that is in almost new condition. The keyboard is very heavy because the keys are weighted (but not piano-action). I find that the keyboard is very fast and responsive, and the aftertouch is very dynamic and controllable. I can't imagine a better keyboard for a synth. -pc
_________________________
"Music so wishes to be
heard that it calls on some
to give it voice and some to
give it ears." -- Fripp