Yamaha DTXpress/DTXplorer/DTXtreme

I too am having a problem getting two trigger sounds out of my 9/10
port.  I have read many posts below and am still having a problem.  I
have a DTXpress kit.  I changed the MIDI note under the voice module,
so 10 is different than 9.  I am using a stereo splitter.  I changed
my "reject" and "spclreject" from 3 to 4.  I've changed the voice on
10 to be a tom.  Nothing I have tried has worked.  I still get the
same sound out of my 10 trigger (additional tom) as I'm getting out of
my 9 trigger (cymbol).  They both are making a cymbol sound.  I'm
feeling helpless.  I'd appreciate any help or advise.