I bow to the AIB and their
extensive knowledge 
so would advise 'strict adherence' as being your safest bet, in all and every situation, normal or abnormal.
rubik that would assume that the 'men in black' know what they are talking about when it comes to what consitutes 'good SOPs' and strict adherance thereof...in 26 years of aviating from single engine Cessnas to widebody Boeing I have actually only met one or two individuals who actually meet that criteria
AND who work in AIB.
I am sure however that more than 'one or two' exist....in fact I would be prepared to accept the number might actually approach double figures when all AIBs world wide are taken into consideration.
