Elitefts™ Sponsored Pro Powerlifter Molly Edwards demonstrates Pull from Blocks (below the knee). This is an outstanding way to develop lock-out power for conventional deadlifters and strongman competitors alike. There are some distinct differences between pin pulls and block (or mat) pulls as Elitefts™ Founder, Dave Tate Explains from the Elitefts July Twitter Chat on Partials. "With a pin pull the bar flex spans from safety to safety—so it’s not a natural bar flex. When you pull off blocks (the plates on them) the bar flexes the same as if you pull off the floor."