Hehe, regarding Dr. Hawkins' work:
I actually read his response to some critics, and the key thing was that skepticism (proving your own position) calibrates low, while sincere doubt (seeking the truth) calibrates high. Your situation was exactly what he was trying to prevent -- skeptics/critics swaying sincere spiritual seekers away from Truth. In fact, that was what happened to me in the beginning as well
read PvsF, stopped, and went on to other teachers. Later I came back, read his other books, and realized he was the real deal.
Definitely check out the sequels to PvsF: Eye of the I, and I: Reality and Subjectivity. The neat thing is that he's a modern mystic, being enlightened and then coming back into the ordinary world to explain everything in simple terms that we can understand, and with examples/practices that are applicable to today's world. With Buddha and Jesus and other mystics, the geographical/cultural/temporal circumstances are different, so many things they said are hard to understand, mistranslated, or may not apply as well.
Kinesiology/calibration is a very useful tool. Unfortunately I don't know how to do it consistently myself, but in his other book Truth vs. Falsehood (basically, a book full of calibrations) he lists many notable calibrations, especially of spiritual teachers and teachings, that are very useful. Especially important are some of his calibrations on various New Age teachers/channelers. I was caught in the whole astral/channelling/energy stuff for awhile, but realized that while interesting, it's still a distraction for the serious spiritual seeker of enlightenment.
Anyway, check out some of his archived radio programs:
David Hawkins, M.D.Ph.D. Beyond the Ordinary Dot Net
Not only is he down-to-earth and truthful but also very funny
I found that surprising for an enlightened sage.