Flew the F27 many years ago so can not remember the flap after landing bit but one thing I do remember is that most pilots failed to apply FULL aileron into wind as speed reduced. This was because they stopped when they encountered the back pressure of aileron spring tab operation. A considerable extra force was necessary and gave about 20 degrees extra control wheel input and had a most beneficial effect on control in a crosswind. The further down deflection of the downwind aileron and consequent drag had quite a substantial directional effect in a crosswind. Easy to demonstrate this extra control wheel available by operating the aileron control when parked.