As I posted on THR when you posted this question:
Has a magazine article from 1977 on "Slicking the Savage 99".
5 of the 7 pages are on trigger improvement.
In that article it says, "Unfortuenatley, the trigger and sear engagement at point "C" is concealed in the receiver recesses, so adjustment of the sear notch is something of a trial and error proceedrure..."
The word 'forum" does not mean "not criticizing books."
"Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist.
Are we a nation of competing ideas, or a nation of forced conformity of thought?