Rikki, I think my accompaniment wavetable sounds fairly good - but it took some work to get it to that point. I to like good sounding pianos. So converted piano and other acoustic instruments sounds from the GM500 and have never looked back. Again I consider these sounds good enough for the accompaniment/live performances but not good enough for lead or melody parts. My modified sYnerGi GS wavetable is every bit as good as any XG hardware based wavetable and then some. I am not bragging just identifying that there are all kinds of sounds out there to improve your wavetables.
I am happy to see all this interest and effort in developing interesting software based arranger systems.
Rikki, I thought I would never hear you say that you would move towards a controller keyboard. Who would have thought??? Or is it that Rikki has to much time and money???