A phalloplasty surgeon has nothing to gain from tipping their hat to natural PE because the surgeon makes his dollars from surgery, not stretching, hanging, etc.
Was there anything useful. No. Griffin didn’t even have the remotest clue about the subject. I’ll put it to you this way, imagine if someone spent maybe one day skimming Thunder’s and then decided he was an expert on the subject and wrote a book off the top of head and you get the idea.
In Griffin’s book, the ADS (not called by that name) is mentioned in the version of an ADS that straps to the leg. Griffin’s book states that this is not a valid method. Why? No explaination. Perhaps because the reference material to this ADS strap was a (phony) first person account that was published in Penthouse and later reprinted in the book The Penthouse Letters?
And The Penthouse Letters also has an account of a man who used an extender like device called a Linga Pendulum. From the description is was a mini jes extender that the man wore ten hours a day. From the description of the impractical dimensions of the device, I’d probably say this was a made up account based on heresay. Has anyone ever heard of a Linga Pendulum? This letter was published somewhere around 1974.