I flew a Prodigy and am now on a Phantom. For me, I control the AOA with the leg wing using my stomach muscles to raise or lower it. My head position on the horizon let's me know where I'm at. If I'm flying flat my legwing is almost all the way stretched and I'm really pushing down on it. Head is level with the horizon. For distance (steep) legs in a bit, letting the air push the legwing up a little, still controlling it, head below the horizon.