"Paul Lynch" wrote
You are correct in one sense that I cannot show the detail wording in a CFR,

Because it doesn't exist.

but then there are other sources. I encourage you to wade through the FAA's
FAQ on Part 61. See http://www1.faa.gov/AVR/AFS/AFS800/DOCS/pt61FAQ.doc
See page 28. The guys that wrote part 61

However, as has been stateed multiple times, their opinions are NOT
official in any way. The only official, binding opinions come from
the chief counsel's office.

Michael