One more note Jupiterboy, I too initially had a hard time not falling out of my brace. I thought that I had to just slow down or crush the can harder. Both of which are true and I needed to do that. But, for me at least, the most important part, that "aha" moment was slowing down the pull through/swing during the first part/first half, from the full reach back to the point the disc is about to cross your chest.
HuB spoke about this on YouTube and gave me the idea. He basically said that the first half of your swing, the speed doesn't matter at all, and slow is better because it allows your body and hips to get into motion. I'll try and dig the video up. But what I found most important for me is that I was pulling too fast initially, which had me coming forward waaaay too fast that no amount of bracing could support. Once I slowed that down bracing became easy.
It was as if I had been driving a car around a corner 70mph and handling it was hard, but then once it was slowed down to 35 handling it was a piece of cake and I could do it with ease.
So focus on the initial half of your pull. Really slow that part down and you'll find that your body and hips catch up then get in front of you, so to speak, then whipping the disc out is a lot easier.
