Don, would you mind sharing any other "Pearls" of wisdom? I have a great interest in 1960's-era bodybuilding, but I don't know much about Pearl. It would be great to hear some accounts from someone who communicated with him directly.
In fact, I don't know how much info you have on Bill or to what extent you interacted with him, but have you ever considered starting a thread on the History board?
If you're interested, check out the Larry Scott and Vince Gironda threads over there. There are more than a few guys around these parts who would love to read up on anything you may have to offer!