I shoot one, the nock-on 2 finger version. I use it for 3-D not hunting. I changed the thumb knob to a 3/4” ex-oxie knob. It has extra grip to grab your thumb. I also have the spot Hogg whipper snapper 3 finger. Honestly, I like the spot Hogg way more and its cheaper. The spot Hogg also clips on the d loop.