Yamaha DTXpress/DTXplorer/DTXtreme

Hey, guys. The wonderful folk at the Yamaha Customer Support have 
answered my perplexing question of several months: How to link a kit 
to a song you have stored, so that when you change from one user song 
to another it will change to the desired kit automatically.  And I 
don't think you'll find this in the manuals.
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To assign a kit to a song do the following:
1) Select User song from the Play mode.
2) Press [SONG] button.
3) Press [PAGE DOWN] button to select Channel and PCNo screen.
4) Select Channel 10 and turn channel ON. Top line of display should 
read ''SONG  Ch10= on''.
5) Using [SEL] buttons, move cursor to ''PCNo'' field and enter 
desired kit number for current song.
6) Press [PLAY] button to return to Play mode.
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Now, having given you the answer, I've got to say that it hasn't 
worked for me. My module still defaults to Kit # 40 GM std 1. I am 
wondering whether to revert my DTXpress to factory settings, and try 
again. That's something I'd rather not do because of all the work it 
will take to restore all the kits and songs I have created. So can 
someone please try out the above procedure and tell me if it works 
for you? If it doesn't work, I'll write to Customer Support again.