Yamaha DTXpress/DTXplorer/DTXtreme

Thanks for answers about the Roland pad - very helpful. Nothing at 
Drumbalaya at the moment but I'll keep watching (I'm in UK by the way).

Further question: if I replace the single trigger snare with a dual 
trigger pad (on a DTX) can I simply use a stereo lead to get both 
triggers operating? If so, will I be able to programme the voices 
seperately?

Thanks
Tim