Justin, Chris, and all..
Thanks for the tips and notes..
I ended up naming each RPA as 1 & 2 (yep, basic)
Then TB55s as 1A,1A,1B,1B etc, 2A,2A etc..
WB37s (5 for each unit) 1A,1B,1C, etc
* might grab a couple more for redundancy.
We have two hubs per RPA, so relatively faster multi...