Yamaha DTXpress/DTXplorer/DTXtreme

I received a return phone call today from Yamaha tech support and was 
informed that the midi features of the DTXpress and also the DTX do 
not support changing the individual drum sounds. No wonder I could 
never get it to work. It seems they could have incorporated a couple 
more controls in the midi with a little more effort, but, I guess you 
can't have everything. Aside from that the DTXpress is great, 
especially for the price.
Dave Collett