Good post pace.
I would like to add another comment.
The more power you use during the flare and hold off the longer you will float down the runway, thus allowing for more destabilizing of the landing path if the air is unstable.....think change in x/wind as you float down the runway.
There is not an airplane made that can not be safely landed power off....period.
VASI/PAPI dependence makes for a one trick pony type of pilot with limited skills.