Depending on which way you spin, you must set your rotation off-axis. I spin to the left so to cork I would throw my right arm up and drop my left shoulder. My head would face down as I start the spin. Coming out of the cork is where it gets complicated. This also depends on what spin you are doing, for a 540 you would come out of cork at about 360 giving you enough time to get your feet down for 540. When coming out of cork you must get yourself in the mindset of trying to get your skis down on the snow so your body can right itself back on-axis. Sounds complicated, but watch videos and practice on a tramp or into pow. Good luck.