In case Davetm does not answer soon, I can tell you that he did indeed use the ZEVA on his original 7 module leaf build. Here is his build thread:
https://www.buggiesgonewild.com/showthread.php?t=145805
There is a lot of useful information in that thread contributed by a number of members!
Here is another thread by member MCJEFE, on the ZEVA wiring which was a huge help to me when I built mine:
https://www.buggiesgonewild.com/showthread.php?t=149685