The only things that start more arguments than flying "lean of peak" are
slips with flaps and a discussion of lift.

You forgot "running oversquare." I know two guys who have been flying
about as long as I have (50+ years) who are convinced they'll burn in
hell forever if the cruise "oversquare," even after I've shown them
Lycoming documents recommending it.

They know more about engines than the people who designed and built
them.

vince norris