well you got it right on the repititon as there's nothing better than that but I stopped reading it when you mentioned drawing it-wtf??? Hey, whatever works!
I will say though that it's a proven fact that watching shit alot can subconsciously help your mind figure it out.
Doing it over and over is the best thing to do. It trains your body to do it instinctively and that's when you'll get em good. Flat's usually enough. However, banks tend to be different a little, but flat first always I think. I notice on a bank my tres work better if I don't set up as much, and give it a slow flip. I love how that trick feels on a hip. Nothing like it. When I started learning new tricks I'd just warm up and do at least 5 of each trick I had already wired just so I wouldn't lose it, then I'd try the new shit, over and over and over over and over again till I had it pretty down. The next day maybe it was hard again but I'd do the same routine the next night. At least 5 times of the wired tricks and then just trying that same shit, and if it was still early and I got it down I'd still just do em repeatedly over and over till 11 or 12. 15 years old and out that late was sketch but I had a little escape route incase namblas came around. Fuck, I was all by myself in an industrial area that was dead quiet. I could have been killed.