The good thing about free flow feeders with CoonHoods is there is no maintenance, no checking or refilling compressed air, which I am sure is a pain to do on the cannons. You attach, then forget about them.
I have a solution but not sure if many of you guys have these types of protein feeders.
However for chute type protein feeders they work!
check out my website
www.coonhood.com
I invite all questions, comments , and criticism.