Yamaha DTXpress/DTXplorer/DTXtreme

Hi Everyone:

I hope someone can help me out here...  I have the DTXpress II brain on my 
kit, and I've been trying to resolve a problem with my playing buzz rolls on 
a home made mesh drum pad.  

I have it plugged into the Tom 3 plug, which has the TP65-2 trigger setup by 
default.  When I try to do a buzz roll, I get a lot of sound dropouts, like 
the set up can't keep up with the data flow or something.  When I try 
different trigger setups, (as in shift-trigger edit, user trigger set up #7) 
like DT Snare or DT hi tom, the sound is even worse (probably because of the 
parameters, and I know I'm not supposed to use these for a mesh pad).  

I wonder about the "misc 1-6" pad types - anyone know what this is for?  I'm 
trying to find a setting that will allow for clean buzz rolls on a mesh pad.

Thank you!
Stephanie