Hi Deane... I have thought of another way to do this, but it may be more complicated for realtime use... I'll let you decide..

Fader 8 on the A-Pro defaults to sending out Bank MSB numbers.
Fader 7 on the A-Pro defaults to sending out Bank LSB numbers.
The value knob can be left on PGM change which will transmit PC numbers as needed.

You could try using thyese realtime controllers to set the values you need for each voice, particularly if they are within the same bank. However, i think the first solution is better, but only if you can get away with assigning only 8 sounds. If you need to do more sounds, the other buttons on the A-Pro can also be set with a sound each.. so all the transport buttons for example.

Regards

John