An article that i had read states that he shot a elk in the shoulder, which is supposed to be the thickest of bones and muscle, and still penetrated enough to reach the vitals. However he stated that he did not think chisel tip broadheads probably would not have gone through all that. I own muzzy broadheads so i have nothing against them. Just if i make a slight movement in my arm and hit the shoulder blade i want to penetrate threw. What is your reaction between that?