Thanks for the comments ... to answer a couple of questions/topics that were brought up ...
I don't sing (or should I say, not by myself! :-) I do occasionally sing harmony with my band's singers, but I have never had the vocal "chops" to sing solo/alone. I have tried, but I'd need some serious help/lessons to make it sound decent! :-)
OTS vs. the extra keyboard - just a personal preference thing. I have used an extra keybaord like this for many years, and just like the 'instant-ness' of reaching up to it to play a different sound. Also, I do not save/create custom styles at all, so I don't do any OTS editing/saving at all. Yes, if I did set up and save styles with my own custom OTS settings, I'd get more choices; I just tend to do it the way I do it, which works for the most part (for me anyway). Good idea though (use of OTS for more sound choices); something I may delve into someday ...
Thanks again,
Jim
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Genos / Tyros5 / HK Lucas Nano 600 / FTB Maxx 40a / EV ZX1A / Rock'n'Roller cart / Hauptwerk virtual pipe organ / misc other audio & music toys