I shot the two inch whitetail specials last year. They fly great and I was pleased with the damage they caused. I hit the opposite shoulder on a doe and did not pass through. Broadhead was bent and blade missing. I noticed the spring that holds the blades closed seemed to get stiffer as the season went on. I will find some type of oil for them before this season. I think a high speed high KE bow is best since it takes a good bit to push the springs in. Just my thoughts on them. I will continue to use them. Also customer support was good as well. I broke my practice head and they sent me replacement parts free.