I shot the Sonic broadheads last year and put an arrow straight through a buck broadside at 15 yards. Whati like about them is they fly exactly like field tips and penetrate very good. What i dont like about them is the blades feel like butter knives, but i guess its sharp enough since i had a pass thru with them. Also, i dont really like the way the blades fit together. It takes a few times to get them square. Im gonna try Slick Tricks this year since ive heard very good things about them.