I'm not an aerodynamics expert. Don’t have to be. I just follow my company’s SOP.
We’re allowed up to ten knots above the proper flap extension speeds. Beyond that, the QAR is used as evidence against me when I’m in the Fleet Manager’s Office.
I could offer my opinion as to why our SOP is correct, but my opinion makes no difference. Only the SOP counts.
Fly safe,
PantLoad