Re: High(er) Intensity Weapons
FWIW, Ledyard Sensei himself has expressed some ambivalence about this kind of practice, for exactly the reasons discussed here.
In my experience, it's great training for helping people understand the kind of intensity that's involved in a "real fight." But it's somewhat counterproductive if you're trying to teach things like relaxation and sensitivity. Like most teaching tools, there's a time and a place for it, but also limitations.