DL Form Check

[sg10033]

250lb DL 1x5.
250DL - YouTube
Took some advice from last time I posted, increased by 10lb. Felt better. Working on getting my chest up, my back flat and not dropping my ass. I can see form degrade on the last rep, just gassed mostly. Any tips on the first 4 or how to get through 5 after a full workout, greatly appreciated.
Also, thanks for everyone who comments on these, it's a huge help. Thanks

[Mark Rippetoe]

Why does the bar move slightly forward as it leaves the floor?

[sg10033]

I don't know. My only guess would be that I'm unconsciously keeping the bar off my shins to avoid, what I assume would be, pain.
Should I just wear high socks or get comfortable with scraped shins?

[Mark Rippetoe]

You should extend your knees as the initial push off the floor. This is what the cue to "Push The Floor" is for.