Chuck Ellesworth, your countdown as you near the ground does worry me.
On getting to twenty feet, you say 'FLARE NOW!" oops! all at once?
Good comment.
Flare now at the twenty foot height is the point at which I teach them to start the transition from the approach attitude to the level attitude above the runway in a smooth change of the flight profile.......it is a timing command that allows them to smoothly change their flight path to level just above the runway and allow the airplane to settle towards the runway as speed and lift decay.
P.S. ::
I never raise my voice when teaching flying because it induces anxiety in the student.