I've started filming my flights for the same reasons and it's a big help. It helps even more if you play the Top Gun soundtrack in the background.
bad idea. that'll distract you.
what ya do, is watch the film many times. from different views. internal, external, fixed, without trails, with trails.......if you see somethign you're not sure about, back the film up, then slow it down.
filming is a wonderful tool. the only wayit cold be better, is if it recorded, and showed control inputs.
the only thing better, is spending time, and
listening to one of the great trainer dudes.