OK, once again, and I'm sorry to guys that I know are actually good and think that this trick is possible, but it really is not. And putting your head down a little does not count. Unless this is your definition of 'corked,' which it shouldn't be. It is indeed, physically impossible, unless you are going unimaginably big, and you use air resistance to right yourself again. Otherwise you have thrown your center of gravity off, and have no way to right yourself in just 180 degrees. So a true corked 180 is not possible on any sort of realistic jump. Physics my bouyssss.
signatures are for pussies