Whenever I get it to flip right, I'm always too far in the back seat. Also, I have problems getting my back foot around to land it. Some dudes get it to flip so fast and perfect, it looks so easy. Just... flowing!
When y'all do it, do you ride straight or do you carve backside a tiny bit going into the flip? I find that it makes it rotate easier. I also noticed some people, like Herman, carve frontside a little. And his flip fast and good. So maybe it doesn't matter. But watch Baker 3 when he does a bunch in a row down those steps. He like tic-tacs frontside right before the flip.