Emu XL-7 & MP-7 User's Group

I'm using Orion Platinum to cue sounds from the XL-7 (with World 
Expedition and Sied. Orchestral ROMS installed), and the MIDI out is 
experiencing some weirdness when trying to access the sounds. 
Theoretically, I would have assumed that Bank 1, Preset 1 would call 
for User 1/1, which it does. However, to get the XL, World Exp, or 
Orchestral ROMS, I have to choose 9, 14, and 66 respectively. What 
the hell?

Any ideas on why it's laid out this way?

/.jacob