Max Deadlift

Deadlift
warmups
370 x 1
400 x 1 (+19lb PR)
410 x miserable fail -moved the weight about 1 inch of the ground

Leg curls
90 x 4 x 12

Side bends
45 x 4 x 12 per side

Here is a video of the 400 deadlift. In terms of form, I think my lower back rounding is still a problem. Let me know what you guys think.

Deadlift

Deadlift
warmups
345 x 3 (belted) -I was tired as hell while warming up but I felt better after this set.
275 x 3, 3, 3, 3 -belted the fourth set

Stiff legged deadlift
185 x 7, 7, 7

Lying leg curls
90 x 10, 10, 10

supersetted w/ Side bends
45 x 12, 12, 12 (per side)

Deadlift

Deadlift
warmups
335 x 5 - Lower back rounded on the last rep. I probably should've stopped after 4.
265 x 3, 3, 3, 3

Back raises
BW+25 x 10
BW+35 x 10, 10, 10

Lying leg curls
90 x 4 x 10

Side bends
45 x 10, 10, 10 per side

Deadlift

Deadlift
warmup
(belt on)- new 13mm power belt arrived last week; core feels more stable with this as opposed to the bodybuilding belt that i've been using
325 x 5
265 x 3, 3, 3, 3

Gym was closing in 5 minutes so I rushed the rest:
Back raises
BW+25 x 12, 10, 10, 10

supersetted w/ Side bends
45 x 10, 10, 10, 10 each side

Squat

Squat
warmups
185 x 5, 5, 5
155 x 8, 8

Lunges
115 x 5 (per leg)
125 x 5
135 x 5

Glute ham raises
BW x 10, 10, 10, 10

Seated calf raises
90 x 15, 15, 15
supersetted with Side bends
45 x 12, 12, 12 (each side)

Deadlift

I tried to do the 70% 3x3, 75% 3x3, 80% 3x2 that Jake suggested for working on form a couple of weeks ago, but I was a little tired at the end of it I think because 1) I haven't deadlifted in 3 weeks and 2) the percentages were based on the 381 max I hit 3 weeks ago, which I did with not-so-great form.

Deadlift
I had my brother watch me do a few sets to see how my lower back arch was.
265 x 3, 3, 3 -arch was good on all these
285 x 3, 3, 3 -lower back started to round slightly in the middle of the movement on the last set so I didn't want to do the doubles at 80%
305 x 1 -very slight rounding in the lower back
285 x 1 -arch was good

I have a couple of questions for Jake:
1) Previously you suggested doing this at the beginning of every deadlift workout, but would it be too much volume to do assistance exercises after this too (like good mornings or SLDL's)?
2) Should these numbers be based on a lower max since the 381 wasn't done with good form?

Lying leg curls
90 x 10, 10, 10, 8

Side bends
45 x 10, 10, 10

GHR abs
BW x 20, 20, 20