A.K.A. "Earth Turn, Whirlwind Earth Turn" or just "Whirlwind Earth Turn" (depending on where you start from).
Good stuff Alex! I've done this trick a few times only, and I'm very sketchy on it. I think that I have tried to start my Whirlwind just before the ball has left the spike.... but maybe that's where I am going wrong. I'll try again, your way.
Cheers!