Preparing for the 21 deadlift salute at the Arnold Classic. I've been trying to hit my back on all of my squat days as well. Previously, I did a 3 week wave with the safety squat bar. I'm currently on week 2 of 3 week wave of squat mornings with the rackable cambered bar. Last week triples, this week doubles, next week a single.

rackable cambered bar off of a 16 inch box. (65 lb bar, I count it as 45lbs)
135x5
185x3
225x2
275x2
315x2
365x2
405x2
415x2

The last couple sets were easier than I anticipated after last weeks 405x3.

Accessory work:
Good mornings with the rackable cambered bar 135x10, 185x8 225x5

100 Total Standing abs on the cable machine.