|: I would take a video but my camera man is gone.
I know you just said it, but try to get video. Just get a camera and aim it at the area you are trying to grind and leave it on. Any film is better than none.
I'd also suggest watching as many of the videos of others as possible for help. Especially Zorgs. He has a lot of them where he practices grinds over and over in a half pipe.