I don't have a Penismaster, but I do have a ViMax-like stretcher. I believe that the Penismaster head attachment piece is better for circulation to the head. The strap secures the head to the support part instead of restricting blood flow to fasten it to the support area. As far as being secure, I have learned that the noose will come loose if the part of the noose that is holding it in place, rubs on your leg or underwear(which I cannot help either because I have big legs). The Penismaster head attachment piece should resolve this problem for me.