Just had my first serious flat spin as well, thought I'd share the experience... Doing a solo flight (no video) on my Phoenix Fly Ghost2, specifically working on barrel rolls. Came out of the second barrel roll in some way that instigated a spin. I balled up as soon as I felt the spin, probably about half a rotation. But for some reason, balling up made the spin faster. Centrifugal force? Or maybe I collapsed my arms before my legs, not really sure. One thing was for sure, after a couple rotations, I couldn't fully bring my knees up to my chest due to g-force. I could only get my knees and legs about half bent (and I'm fairly athletic). My arms were tucked against my chest, so I reached down to grab my knees to pull them in. I was able to pull them in a bit, but not much. I saw that my leg wing indeed had a little bit of inflated material sticking out between my shins. I grabbed that with my hands to deflate and pinched it between my knees. As I was looking down working on my legs, I saw my wing cutaway handles, and given that I'd probably lost a good amount of altitude, ripped them out, then arched (keeping my knees and feet together). I instantly became stable, belly to earth, and thus pulled. I think I probably started the spin around 8k and was out by 5k. I believe I was spinning on my side. The g-forces in the spin were pretty strong. I definitely felt blood rushing to my head, but no where near losing consciousness. Not quite sure what I would do differently if I find myself in the same situation. My concern with doing anything but balling up, such as arching, would increase the rotation rate. From some of the videos I've been watching since, it looks like others experience the same problem with g-forces and balling up.
