I am experimenting with the style modelling feature and it's simply superb, the results can be stunning, how effortlessly you can transform a style to make it sound so different and so new whilst still retaining the high sounding quality you'd think it's just another factory default style.
As you quite rightly mentioned John I have that setup you mentioned of the Ketron Korg and Yamaha combo but now finding out how good the SD7 really is feels like having the three a little too overpowering, I think a combo of the two (SD7 + another) would be the perfect combo.
Yes the style modelling is quite an extensive and creative addition to this Ketron keyboard, be it time consuming as well!
And you are absolutely right, a combo of two arranger keyboards of a different make should suffice for most of us, but if you see the prices of secondhand lower models one might easily be tempted to add a third keyboard. The thing is that if you have too many you may start wondering which one to play next, or, as it happened when I had six guitars on the wall, it turned out that I basically played virtually all of my stuff with only two of them, evidently my favourites. Wonder how Bernie is coping with this "dilemma" .
Anyway arranger keyboard players these days cannot complain and are simply spoiled for choice, so just make the most of it !!!
regards,
John