John,
Have you actually tried this yet, using your PA50 and PSR3000? If so are you pleased with the results? If I purchase the Micro, I too would use the same set up (3000/micro)
Also I'm a little confused:
Once you have familiarized yourself enough with it, dis-activate the midi link for the uppers but keep the midi link to the accompaniment section. Wich , I repeat myself, will give you two full acc. keyboards on the lower half of your main keyboard and a total of five uppers on your righthand side, three on the main keyboard and two on the Korg
How does that happen if it's deactivated?
Thanks for your expertise