Stop the annoying sound glitch which often occurs whilst changing registrations - TomTomSF refers to this in One Touch settings but it also happens with registrations. My Technics changes sounds smoothly without any problems. I have registrations setup which I cannot use because of this.

The Registration buttons are in the wrong place and should be on the left (or centre) - a good option would be to have a further 8 buttons on the left which are assignable so they could be used for registrations, sounds, or whatever.

Good editing options for styles (showing 2 styles, side by side), so that you could quickly & easily copy / paste bits from any style with the same timing (as on Technics, with real micro editing if users really want to do the job properly).
Tony