Trick starts like a Layout, with a set and a break. After leaving the bar, perform a double somersault with two twists before opening to the catcher.
There are two ways to perform this trick. Probably the more common is to do a twist in each somersault ('Full in, Full out'). The second method is to do a half twist in the first somersault, and one-and-a-half twists in the second ('Half In, Rudy Out').
You can find out more about this trick in my books:
Thanks to Pneumatic Arts (@pneumaticarts) for providing a video for this page.
IMAGE CREDIT: Pneumatic Arts, @pneumaticarts