"8.0.2.3 A significant number of operating practices allow the discretion to the Commander to decide how the flight should be flown. These are characterised with the need to exercise sound judgement and prudent assessment and may be referred to as sound operating practises (included under the more general heading of airmanship during an earlier period).
There has been a trend within the industry to refer to all operating activity under the heading of SOPs or a desire to specify all procedures within such a concept. Such broadening of the scope of SOPs diminishes the merit and value of the concept and hence the need to highlight this differentiation."
Well said (or written).