Of course, to be a "perfect lift", satisfaction of the following rules would normally apply...
Causes for disqualification, resulting in no lift, are:
Any downward movement of the bar before the lifter reaches the upright position
Failure to stand erect, with shoulders back and knees locked
Supporting the bar on the thighs during the lift
Movement of the feet in any direction during the lift (rocking on the heels is permitted)
Lowering the bar before the head judge's signal
Allowing the bar to return to the platform without maintaining control with both hands
The only real problem I saw with the limited side/frontal view of the youtube lift video was the inability to determine if the shoulders were rotated back and the knees were locked. As commented already, only a full side view of the lift could make that determination. Regardless, it is an unbelieveable feat of brute strength!
One wonders what the great old-time strongman Hermann Goerner, who was credited with deadlifting 850 lbs. in front of creditable witnesses in the 1920's, could have done with the aid of doping (supposed to add roughly 1/3 to ones' lifts) plus the aid of a deadlift suit (another 50-100 lbs.)? Interesting speculation.
