Knee position during block pulls

[BareSteel]

Hello, this is my most recent set of 5 for block pulls. It looks like my knees are subtly rebending during the pull, which I know isn't the right way to perform these. It's not a blatant hitch, but just a subtle movement. I'm aware of this, but was unable to correct it during the set. I'm open to some feedback and suggestions for a better pull.

Thank you,

[Mark Rippetoe]

It's not terrible. Just keep your hips up.

[BareSteel]

Ah, I see that little movement on the heavy set (and it’s absent on the light set). Thanks for taking a look.

[Steven Kalin]

Your exhaling on the pull, no?

[BareSteel]

Ah - you’re right, Steven. I am leaking air on most of these. Gotta fix that!