Gentlemen. Is it really worth falling out over this?
I thnk that formal 'HASELL' checks are universally accepted for stalling/spinning/aeros, debatable for UP/UA recoveries, and unnecessary for simple steep turn practice.
I understand, however, that some instructors will prefer to include them for all of the above, and, as they can be completed in a relatively short time, I really don't see what the problem is with that.
Textbooks are there to educate and inform, not to be followed slavishly.
MJ