sorry just getting used to how the forum is organised.Yes I can set a vaule above one. Intheory if you did this it would add energy to the colliding object. So a value of 2 would double energy of coliding object. Which it does... normallyAlso in theory a value of one is perfect bouce and no energy lost. Wierdly not now. Only happened this week as previously I have had no issues like this Hoping this is a bug and the update may help...