I've used Rage mechanical for years. Good luck with them. Until two years ago when I tried the Chisel tip with a twisted looking tip. I shot a small bucks at twenty yards square in shoulder. Waited 30 minutes. Tracked him about 100 yards to see him still alive, head up lying about 10 yards away. He stood up. I put another into his chest. Then another. He laid back down. I thought he was surely going to expire quickly at this point, so I walked to my canoe, which thankfully was only now 50 yards away. I left my bow and went back to retrieve my buck. He was gone! I tracked him again, another circuit through very thick stuff and then into the catttails. There he was feet away. Still alive with head up! All I had was my knife so I went up to split his throat. He got to his feet and charged! A stumbled backwards a feet few and he then laid back down. When he put his down, I stepped on his antler and finished the job with the knife. When i dressed him out I found that not one arrow went through both lungs. All one lung. I have a video of him standing there in the cattails. I attribute it to the twisted design of the Chisel tip, causing the arrow to turn upon impact.