Ian, we have talked in quite some detail about OS2 here on SZ since it came out. For someone who has said on several occasions that he was interested in the unit, I'm surprised you missed it...

However, OS2 doesn't add the ONE feature you say you HAVE to have before you get one. The style composer section, AFAIK, still doesn't allow wholesale copying of sections from different styles and assembling them. I think you still need to use a computer for that (mind you, here you are, using a computer! Doesn't seem THAT onerous, does it?! ).

But OS2 added most of the fabulous Makeup Tools abilities from the E/G series, except the detail drum kit editing. But it DOES allow you to edit the style insert MFX, and easily correct some of the questionable style volume and sound decisions of the ROM styles...

If you are prepared to move just a LITTLE away from your Yamaha workflow (use ANYTHING other than Yamaha, you are going to have to deal with it, sooner or later), I believe you are correct in thinking the S910 and GW-8/Prelude would make a killer combo arranger...

And sorry, BBBB. That comment was a general one. Don't put that hat on if you don't think it fits. We both know better than to take what those snake oil salesmen in charge of arranger marketing say (on the panel graphics) seriously, I'm sure...