Thinking of QFDM system
Example of the conflict of SOP's.
SOP is 160 kts on approach.
ATC request 180 kts, do you a) say sorry not able, good answer, but perhaps a 360 is now in order, or say b) yes, no problem.
Geneva ATC, hold you high down wiind, then give you slam dunk, (they do ask if you are able, so only slight pressure).
Moscow, give you ILS, but forget to tell you GS is intermittant.
ILS on main runway, then slipped to parallel, box makes big bang now.....
As to Ops Manuals, in general these are written for Big Airline operations, and are not practical for corporate operations. SOP's come from The FOM and Company Manuals, and should be practical for the crew to implement, and not just a box ticked.
glf