GJ, if you persist, the soreness will soon go away.

I wish there was more time in a day to do all this stuff. I enjoy the guitars but prefer keyboards best. If I could play like Nigel, maybe I would see it differently. . .

The Korg operating system is not for folks in a hurry to play a new keyboard. It takes a lengthy learning phase for folks that are used to the Technics method. For the first time though, I can say that, out of the box, a keyboard has voicing that is better than the KN7000. Can't say the same for the operating system, though. It is a real challenge. Once it is mastered, you can cause the keyboard to be something that fits your personal way of playing. Even the factory stuff is editable. EVERYTHING is editable. Some of the styles are great, some are terrible. But, they are all editable so they can be made whatever way you want.