Thanks for the comments. In this particular start I did stumble on the 4th step or so. Unfortunately this was the only start I did that day that was filmed.
I tend to sink a lot when in the starting blocks. I’m not entirely sure what is causing it. I think my position in the set position needs to be tweaked a little. Might have something to do with my block spacings too. Any suggestions? I have a short torso, so this might be causing some weird hip to shoulder height issues.