Each SA voice requires a different skill level to use them with accuracy....you can't expect to just play them correctly out of the box...these voices must be played just like the actual instrument to get the real benefits out of them.....but when implemented right they are simply astonishing. With the new T3 coming out and presumably a New S series behind it used T2 & S900's will be out there for a nice price not too far off in the future also.....enjoy your new KB's Yamaha is on a roll!!