Hey Brent
It's tough to see the set up from this angle. Next time please film from more of a 45 degree angle at the front and in landscape.
You're initial setup is fine, but then you drop the hips as you go to pull the bar and then they start lower through the rest of the set. Don't let the hips drop once the shins touch.
I think you could get the back a bit tighter and squeeze more slack out of the bar. Check out these two videos from SSCs that walk through how to do that.
CJ Gotcher, Step 4
YouTube
Niki and Cassi, Squeezing the bar off the platform
YouTube
Those may help.