Good day. I have a dilemma .. I am owner of Audy ketron and korg pa700. Condition like new. Since audya is a bit old now, I thought to replace it with the ketron sd90 or buy a 128/256 MB memory and keep it. Korg will be the control keyboard for the Sd90- the future korg pa1000. One thing is for sure - I don't like pitchbender audios, there is a joystick in the korgu. Besides, I still hesitate whether the sd90 sound will be a better solution and whether the korg + sd90 will work well together. Can someone advise something?