+1 more. Tom is spot on.
I feel confident, based on,
1. mine and others direct experiences with him in lessons and
2. The fact that no guitarist who has recovered completely from FD has come forward to attribute Leisner for their success in the 25 years he's been taking money for his FD lessons.
3. The high price for lessons and required minimum.
4. His arrogant quotes that Tom pointed out from his book implying only he has the answer.
that my original assessment is accurate. Leisner is peddling Snake Oil.