A friend recommended that I try the Steelheads after a bad experience that I had with another expandable years ago. After trying them I found that they worked just as well for me and my setup as many of the fixed blade/replacement blade heads that I had been using. They also penetrated better and performed more accurately under a variety of environmental conditions. Since then I have moved up to a larger cutting diameter expandable...the Hammerhead...with similar good results. The amount of KE that my bow is generating is more than enough to push the 2 inch cutting diameter hammerheads through the whitetails that I pursue each fall.