Read this:
HNI Predator Hunting Tactics & Strategies Sub-Forum Thread: Species Specific - Fox, Bobcats, & Coyotes
Coons are only going to come into coon fighting most of the time.
I own a lot of electronic callers, and have owned many more - dating back to when we LITERALLY carried turntables and vinyl records in the field. There hasn't been a Primos electronic caller on the market I would want to own over a Foxpro.