Yamaha DTXpress/DTXplorer/DTXtreme

"I think someone made a reference to a 3-zone cymbal designation 
regarding the DTXpress II brain"

The PCY10 is still available at several websites.  But I not sure 
they will be for long, especially if the PCY150 actually appears 
soon. 

As for as the PCY10 is concerned, I have five of them and they work 
wonderfully. Two pairs are combined with an insert cable and attached 
to zones 9/10 on my modules one and two and the other is attached to 
zone 1 on module 3.  

But the PCY10 cannot be used as a zone on the "3-zone" cymbal input 
(i.e. say a PCY65S being "2 of the zones" and the PCY10 being 
the "3rd zone". It must be plugged into a separate zone input.

I not sure if your are refering to my earlier comment about 
the "phantom" 3-zone cymbal "PCY150" that is referenced in the 
dtxpressii manual and the actual voice settings in the 
module "ride/rideR/rideC". I would think this would function with the 
use of just one stereo cable between the cymbal pad and the module. 
Similar to the 3-zone snare (pad/rim1/rim2). To use the PCY10 with a 
PCY65S and to acheive a form of three zone cymbal (bow/edge/cup), two 
cables and two separate zones would have to be used.

For anybody who is contemplating purchasing a PCY10 and putting it on 
the same mount as the PCY65 cymbal pad, you will need to set the 
specific rejection between the to pads fairly high. Also, you might 
want to turn the wing nut to be parallel to you as opposed to it 
point toward you, because if you accidentally strike the wing nut, it 
will trigger the PCY65 pad mounted below it and not the PCY10. 

OldGuyDrummer