Not so much hamstring as lowerback, legs still can't take full deadlifts quite yet, hence the SLDL. Legs would be out for a week otherwise.

It's a lot easier on my quads, so I can still do my intervals after the initial weightlifting workout.

Its also why I omit squats and lunges from my workout, for now at least. I'd love to do them, but they'd knock my legs out for days at a time so I have to make a compromise. That and the fact that climbing the stairs to the office becomes a whole new world of pain....