I shoot a mathews feathermax, apa ultimate rest, i draw 70lbs and shoot easton carbon aeros 300's. I go with wasp 100gr. 3 blade fixed blade jacks 1 3/16 cutting diameter. My pins are set at 20, 30, and 40. This setup seems to work awesome for me getting pass throughs on every elk that i have arrowed. I arrowed my cow a second time this year at 50 yards and still pass thru. i was impressed. My partners use spitfire expandables and swear by them but i have had soooo good of luck with the wasps that i refuse to change. If it ain't broke don't fix it.