Left side block drills/exercises

Let's say theoretically your left hip is reluctant to block anything violently or has somehow forgotten how to do it in the slightest. Does anyone have any decent progression drills/exercises/stretches/thoughts/theories/voodoo to get some snap back in the hip and prevent someone from either spinning through a block or driving off the right leg only?

How's your anterior leg strength right now?  I met with a strength coach who firmly believes anterior strength aides in the "block" or "stopping power" of a throw.  I'm not sure about that, but I found it interesting.  I've since increased my anterior leg work as I, many times, "blow through" my finishes on the weights.  I do feel more powerful in my block, but I also believe a slight technique tweak has helped with that.  

A no reverse throw simply means your feet do not reverse upon release. In Braemar for example, you would simply keep your feet planted the entire throw, including after the release. In my opinion, if you are having trouble blocking or keeping on your right leg long enough, this is the best way to fix your throw. 

I think that often a weak block is caused by an over-active right leg. If an athlete is trying to "push" with the right leg it will cause the right leg to slow down in its rotation and thus come against the left slowly or weakly. Usually, as this results in poorer and poorer performances, the athlete will start trying to drive the right leg harder. I generally recommend, especially in the light events (os and lwfd) that an athlete just try to allow the right knee to rotate freely and turn into the left instead of extending hard and driving.