Back Killer

Max Effort Sumo Dead-lift.
3,3,3,3,1,1,1,1 Find a Max

then:

Quad-set:
Wide Grip pullups- Failure
Dumbbell pullover- 12 reps
... One arm dumbbell row- 12 reps
Chin-ups- Failure
5-6 sets

Quad-set:
Wide pull-downs- 20 reps
Siff-arm cable pull-downs- 15 reps
One arm pull-down- 15 reps (each arm)
Seated row- 28 method
5-6 sets

CORE
Back Extensions-50 reps
Knee ups-20 reps
3 sets