Muzzy, ifthe whammy is tuned properly, itwill fall away very close to brace. Ifyou creep the string from let off and there after allow the string to pull your hand into the brace position the arrow will DEFINITELY bounce on the launchers arm. This does NOT mean that the whammy has a problem. The whammy is only doing what it is supposed to do, and the bounce you're getting really shows the 'speed' of the rest.
However, the bounce of the arrow will not be as pronounced if you 'creep' the string all the way from let off, thruto brace. I know it's easier said than done on the binary cam bows. Unfortunately, this is the only solution and it is achievable, once you get the hang of it.