I have never used one, but my best turkey hunting bud does and he loves it. He has used it for 10+ years with Nitro shells and has never had a reason to change. I have never heard anything but good stuff about Rhino chokes. With that said, I did notice Rhino came out with a more economical "thunderbolt" version this year for $49 instead of the typical $98 "Grand Slam" model.