Originally Posted by
gnuckols
I think a lot of it is ROM-dependent. A lot of the people I know who've had success with it had lockout issues, and progressive ROM training lets you train your lockout with relatively high volume and intensity. When I was pulling 645, I could break close to 700 off the floor, but I had lockout issues (in hindsight, that probalby had something to do with how I was training my squat. I was pushing squat training REALLY hard at the time, so I was very strong positions that somewhat mimicked where squats are challenging – high degrees of hip flexion – but wasn't as strong in positions where squats are less challenging – closer to full hip extension). I think I got a bit stronger off the floor with progressive ROM training, but I got a LOT stronger at lockout, which is what paid the biggest dividends.
tl;dr if you're weak at lockout, it's worth a shot. If you have a more typical sticking point near the floor, it may not do much for you.