Here's Kurtis. I get to use him as my "what not to do" exhibit because he has thick skin, I'm married to him, and he never looks at the website anyway. Plus the picture is so blurry he could claim plausible deniability if he wants to. Additionally, he fixed this in later reps.
Note his position. He's slightly forward on his toes, you can see his heel lift. I can't tell if he's simply too far forward or if he's beginning his jump. In any case, he needs to be patient, he's not ready to jump yet. His knees are still bent, as they should be, but his shoulder is still over, bordering on infront of, the bar and his arms have begun to bend already.
Guess what happens when you're forward of the bar?
Yup. You get to chase it across the gym.
Now go look at yesterdays post, look at that position I noted, see the difference, and GET THERE.