Fair enough Richard but I gently and genuinely nudge you to reconsider his teachings as a whole. For me, more than the muscle testing stuff, the undeniable Truth of his teachings, which can so readily be verified in real daily life, strengthen my Faith in him...
And if you recall, Muscle Testing works only if the tester and tested both have Faith in it to start with - so it cannot be "tested" to see if it works. In some ways, it goes back to Faith...
Until I see or come across something very definitive to point out that Dr David Hawkins is/was a fraud (which seems utterly unlikely), I'll continue to revere, study, and benefit from his teachings