I just ordered some slick tricks, shot em, sold em. Using the same grain heads, there was no comparison on penetration between a slick trick and a magnus stinger into my broadhead target.....throw some hair and bone into the mix and I believe the steep blade angles of the STwould create even more friction.I'm sure if you hit a deerin the goody box either broadheadwill blow right through....too badwe don't always him em where we want to. I'm going to stick with the stingers,they fly just as well and I like the ease of resharpening.