I had / have a problem with the highest keys, the right side, there is no velocity After a lot of testing I noticed that it happens only with a few tone presets. Some work ok, some not. It looks that in performance, drawbar & synth there is no problem. Only when I use the "bad" tones in hexlayer or so, it is giving problems. But to send it again to a service point.... well just to much work, I can live without those keys. I marked them with a red pencil