Hi George:
Thanks for looking into this problem. let me try to explain.
Once you turn the harmony feature "on", select any piano sound, play any chord with the left hand and then play two or three notes in succession at a moderately fast speed on the right side of the board, you will hear "extra" notes (sort of in between the notes being played) that have nothing to do with what you are actually playing; this is the reason I call it "sloppy" because it isn't a clean cut chord in response to the chord that you are actually playing with the left hand. It should be a match, and the notes of the harmony should be heard at the same time, evenly, each time you play a single note.
If you want to hear how it should actually sound , just try the same procedure in the PSR2000 (or the 9Kpro) and see the difference in the response of both keyboards. It's night and day. As AJ said in the past when addressing this problem, some brands of keyboards have a different approach to chord harmony recognition, some are faster than others. Ketron/Solton KBs are just too slow to be acceptable in my opinion. Yamaha has it "nailed" perfect.
Most people will not mind this deficiency if all they do is play single notes with their right hand. But if you are into the Chord harmony feature, it can drive you "bonkers" as it does me. I hope that I have explained this properly so you can diagnose it and perhaps with your influence and clout with the folks at Ketron, they can address this problem and have it corrected in the near future. I truly want to own one of these great Keyboards; it is the only thing stopping me from buying one.
Thanks again.
Mario