I wonder if you guys can answer a question which has puzzled me for some time.

Yamaha make a great point of the fact that some of their SA voices sound monophonically (usually by playing legato) or polyphonically depending on how you play them. I have never seen the practical use of this unless it is only to provide the ability to easily trill 2 notes.
I argue that if I want to play solo (mono) I play 1 note at a time in the RH. If I want to play poly - I play chords. Simple!
For similar reasons I don't really see what the practical use of the panel mono button is either, again unless it's to provide the trill capability.

So what are your reasons for applying mono to solo voices (when you can just as well play using one finger -lol!)

It would be different if the mono voice would act as a reliable lead (melody) voice when playing RH chords as it did on say the PSR 7000 which I still have.
But with Tyros 2, if you play say 3 note RH chords set to mono it's a mess because ANY of the 1,2,3 notes could come up as the one sounded, not just the highest or "lead".

I hope I haven't made it too confusing!

John