Congrats on your ZX, welcome to the tribe!!
Here is what I did to figure out what my layout would be that would work best for me. I just placed my hands on a table top, or used my stomach or front of my thigh, put on a nice groove type song, and watched/felt where and what my hands did naturally for the snare, kick, and hats. Not just tapping with the whole hand, but using the fingers. Which finger would touch and in which direction when the song hit the snare, kick, and HH. I guess it is similar to tapping on the steering wheel when you are driving down the road jamming to a great song. I tried all of the suggested setups, but none of them worked for how my hands wanted to go. I use my right thumb to alternate between kick and snare, and use my right ring finger and pinky for the HH. I posted a pic in this thread of where my sounds are at and my main three pads. I am using Superior Drummer 2.0 and have the older 3.1 chipset. I use the software to setup my cross fade sounds instead of the feature on the Zen. Apparently, the Zenedit program will give you more flexibility with the new Z4 chip which should be what you are getting when it comes to cross fades. Some of the other Zendrummers out there have tried my setup and they have adapted to the suggested mapping and have been using it for so long, my layout just didn't work for them. My suggestion, find a layout that is natural for the way you play instead of forcing your hands to learn how someone elses setup is. That was part of the fun when we got together in Atlanta, everyone was different in some way shape or form, we all had different setups but in some aspects they were the same too. Crazy!! Have fun with it and remember there are no naive questions, we are here as a tool for you to excel in this new stage of your adventure in playing music.