Finally getting some progress with this, I first tried this several months ago but couldn't get anything going and quit. Now I just spent two hours in the field, and first it felt awful, the "throws" were ten meters long and then meters to the right, and it hurt my lower back every time. I realized that although I was doing the skateboard kick motion, my hips weren't turning, and I jammed my lower back when I just moved my upper body and then legs. Or something equally weird.
I then stopped using feet altogether, just pushed the disc to the upper right pec, turned my torso bit away from the target, and just threw. And it felt so effortless, I could really aim better with my elbow, didn't turn the head so much so I could really see the line, and the the results were better than my ordinary stand still throws with lousy reachback. Everything flew around 50-70 meters (my max distance is around 80 meters) straight and nose down, there didn't seem to be big difference between the discs. Usually MD2 and P1 turn almost immediately flopping around if I don't give them big hyzer
angle, but now the did small turn to right and that's it.
I'm keeping the disc quite high (almost shoulder height), it seems that if I keep the disc under the nipple, I throw to the ground.
I'm still slipping the disc out of the hand, if I try to grip it as hard as I can, it won't leave
Or I spray to right. Also my timing goes of. I should probably just keep practicing of gripping later and pulling harder (still starting the torso twist before pulling, otherwise to the right we spray.)
Skateboard kick and the whole hip thing just seems so unnatural to me, I can get the feeling bit with one step, but with stand still, it's really hard to time it and shift the weight forward properly.
So there's still lots of work to do, but finally I feel that I'm onto something.