too much fles will actually hurt you in most situations. Limited flex will allow your center of gravity to come into play, you cog isnt too great when a tire is flexed up over the roof, it also allows the car to apply traction to the flexing wheel. IF it just kept on flexing, then there would be little traction to that wheel. Sorry if that was confusing, but maybe if dezfan sees this he can help, he explained how too much flex can hurt, and it made sense!