Larry
Your point about small screens on the Korg AWS is very relevant. My Korg's screen is about 4" v 2" horozontal and does not make you want to study it for too long which is a disincentive for me when I think that my back will be arched over the top of it for long periods.
With regard to changing patches mid track. I discovered very early on the mix gets too complicated when different instruments/sounds are used on the same track . Controlling the effects is another reason I would only do it in an emergency to avoid ping-ponging
I think I can visualise what Sounddiver does now.
I wish I worked in the US where I could visit shops to see what all these options actually do but thanks to you I can get an idea or at least some direction
Many, many thanks
Tony