I bought both the Mean and Power Machine back in March and I'm so glad I'm back to using two of the best Track balls that I've ever used. My style of bowling has changed throughout the years since I've last had those balls the first time but I've adjusted well with them. Even though I'm changing my arsenal to a near-all Motiv stuff, the Power Machine is my ultimate go-to ball when the lanes really starts to transition when I have to play more inside.