ive heard both good and bad..a buddy of mine uses them and swears by them...they are a good broadhead..however i use grim reaper razorcuts and they are pretty nasty on deer too..ive shot 5 this year with them and only had one run out of sight and even then she didnt go 60 yards...IMO u cant really go wrong with either broadhead..i just dont like usin what everyone else does and paying 41 dollars for 3 heads that i cant reuse..which brings me to another thing...i have shot 3 deer with one of my grim heads and they have all been straight pass throughs