Dear checkboard,
I think you missunderstood my reply.
I got the impression that it is the flare height and the arrival that is helped by JF.
Not all flares and touchdowns are linear in there execution, there is an amount of juggling to be done.
The ability to judge height and recorrect if needed is what the instructor is looking for.
You cannot send a student solo if they can't bracket during the arrival.
You question my experience, unfortunately I am considered to be a bit of a dinosaur.It comes with age and dare I say it, experience.
These days I only instruct on DH-82 and DHC-1 if I wish to find the time.