...and to answer that question, when I was training with Kirk regularly, I would do a ME Deadlift-type workout and a ME Squat-type workout every week. For the 6 weeks or so that I did this, I think it helped me. But it was too stressful to do all the time. I haven't been doing DE box squats, and I think it has hindered my squat poundages lately.
Of course, my bench (which is my weakest lift) is progressing very nicely, so I'll worry about my squat when it starts to become my weak point.