The next thing is, all the landing data is based on overflying the treashold at 50 ft.
All this small airfields are VFR. I donīt follow a GS there, wich will bring me just 50 ft over the treashold, leaving 1000 ft of good runway behind me when I touch down. Without this 50 ft, touching at the threashold, I need 1700 ft landingdistance only, with brakes and reversing.
This might work for your small FAR23 aeroplane, imbalance, but will most definitely not work for larger jets, for when this 'duck-under' is tried with many jet transports, the main landing gear may well become entangled in the approach lights frangible bits, with expensive results.
In any case, the 'duck-under' maneuver has been the cause of several accidents, especially when unpredictable windshear may be present.
I don't suppose that my remarks will be especially appreciated, however, by a few of the more younger pilots, who may well consider themselves ace-of-the-base....for sooner or later, their luck will run out.