Swing out and turn around at the front end. Over the platform, bring your feet up in front of you and place the front of your feet against the bar. You can either bend your legs or keep them straight (you may find you can achieve more rotation with bent legs).
Before you reach the peak at the front end 'break' from your folded position and sweep your legs back behind you until they are above your head and your body has risen over the bar. Let go of the bar and continue the front somersault in a straight position until the catcher is in front of you. Grab the catcher's stick that they will be holding in front of you.
This trick can also be performed with the bottom of the feet on the bar, and the legs straight. This prevents the legs from falling out of the position.
You can find out more about this trick in my books:
Thanks to Fly'n Fit for providing a video for this page.
IMAGE CREDIT: Brian Sobel