As I said it didnt FIX the issue but did make the throw of the arm feel different. and getting it into 2/3 at high RPM is slightly better. This could be that the lubrication additives that they use stop a certain amount of engine vibration ???? who knows........... It works for me and I'll stick to it now. Each to their own. If you dont agree, dont do it. If you think im full of cr@p, dont do it. But this is a community...we SHARE information :D