Yamaha DTXpress/DTXplorer/DTXtreme

Hi there,

I just signed up because I'm going to buy a dtxpress 2 in a month or 
so, and I still have a few questions. I'm hoping you're able (or 
better, willing) to answer them.

First: Does the dtxpress have a velocity cross-fade?
Second: what's the difference between a stereo-pad and a dual zone 
pad?
Third: If i buy the optional cup-trigger on the ride, will I loose 
another sound?