Dennis, the PSR-S910 does not use the FSX keybed.

In my opinion, the S910 is what the S900 should have been.

It sounds much more robust, and there have been no quality issues whatsoever, unlike the S900, which came out of the gate with a few problems, that were eventually corrected on later models.

The Roland Stage is a really nice synth, and would be great if you were playing in a band, or playing solo using only SMF. I thought it had a really nice piano sound, which went well with the extended keybed(76) and I also thought the organs and strings were very well done.

Aftertouch would have really increased it's desirability factor.

Ian