These are the only broad heads I've shot for 6 years. I've shot them in weights 125 to 200 grains. Right and left wing (make sure your feathers match).
Very tough head, shoot true, and I've had 5 pass throughs on 6 whitetail and one bear I've killed with them since 2010. I'm shooting 44-47# draw weights, 27" draw, and have used Axis Trads but now using Easton Deep Six Injections. Tim has ferrules for these Deep Six arrows as well.
Frankly, this broadhead is the only part of my hunting rig I don't tinker with.
Full disclosure....Tim is a very good friend as well and I probably wouldn't have tried these broad heads if he had not designed them.