Have you ever done back 180's, or better, back fulls? if not, i'm going to assume you know the technique. if you start the twist about when you start rotating, but quit twisting when you're close to having your back parallel to the ground, you'll never make it. same principle for wallflip 180's or 360's . Continue your shoulder rotation as long as you can, and be certain that your hips follow, too. try to twist around as far as possible and still land the flip, even if you start going past 180. from there, try to get a feel for how much you have to turn to get 180 degrees and just experiment.
Chase does a nice 360 wallflip in the video Brothers Journey .....just search on youtube then slow the video and check chase's technique
Good luck and train safe
