Hello friend, greatings from Brazil.
Do you know an old synth by Roland called D70 ? It have a structure named DLM, that doesn't work which its designed.
I think that you have 2 problems, the manual and what are the result that you spect...
I'll receive my XP80 in the next week, and shall to undestand the structures and the boost. Then I'll contact you.
Just wait...
Believe me we don't have just bananas.
Sorry about my bad English language.