Glad it was helpful!
As for protocol selection, some people use all Z wave devices, some use all zigbee devices, some choose based on each specific need.
There’s an article in the community – created wiki on the pros and cons of each:
http://thingsthataresmart.wiki/index.php?title=Z-wave_versus_Zigbee
Discussion of how SmartThings manages local processing in the following thread: