yeah, in every invert, you just use the wake. it's all in the edge and taking things straight up. for a tantrum, get some speed in and just make your shoulders parallel with the wake, get chest over your toes and just act like you are doing a backflip on the ground.
if there is anything else you need to know, just email me at firstname.lastname@example.org
and i'll get back to you as soon as i can.