Our work with elite athletes serves as the proving grounds for our methods. Most people don’t play professional sports. But if our methods help athletes at the highest levels, they can work for anyone.
The barbell smashes are magic, and I love them. Such a chill way to get at the quads and adductors.
In regards to the hamstrings, though, you’ll probably find a foam roller next to useless for working on those suckers if they’re really stiff. I have decent hamstring length, but the tissue is really junky, tender, and generally messed-up. I always have to go at these suckers with the lacrosse ball, or get up on a barbell (Monkey Bars of Death mob). If you are lacking that kind of range of motion, I’ll wager your hammies are pretty messy, so don’t count them out until you’ve tried a more acute tool. They might just be beyond the powers of a foam roller to heal.
Every time I strip my hamstrings apart with the lacrosse ball, though, I feel like I’ve been given a new set of legs. So much of the general tension and unpleasantness is relieved. I hope you get similar results!