I tried the 3 blade last year. Only took one deer and made a bad shot, so I haven't made my mind up about them. I pulled the shot and spine shot a small buck in the neck. Deer dropped right there but was still alive. Had to get out of my stand to make a follow up shot. I put the follow up shot from about 10 yds or so up through the sternum and the arrow went up through the spine and was sticking out about 6 inches. Pretty good pentration if you ask me, but what really got my attention was the blood loss on the follow up shot. It was like a frickin hose coming out and deer was bled out in about 10 seconds. Hopefully I will have a better idea how they perform after a properly placed shot this year.