I can think of two more reasons to hold off to stall warning in the flare in light aircraft only that are sometimes relevant:
-
On bumpy runways (uneven grass fields) to reduce landing gear stress.
-
To ensure students achieve an acceptable pitch attitude on touchdown to prevent nose wheel first landings, porpoising, and wheel barrowing. If the stall warning is starting to chirp they probably have their main wheels lower than their nose wheel. What makes me unhappy with that method is that the reason it is even necessary is that students are so often taught to carry too much speed over the threshold. I know people who were taught to maintain 70 or even 75 KIAS over the threshold in a C172 in calm winds with just the student onboard – they just float and float and float…