I said to Joe last time, one of the imperative of teaching 12-5-1 would be ...you got to sign up the student for a minimum of 20 lessons in advance, before we start. Particularly in our side of the world (China- Hong Kong)
But at the same time, I find that for someone do not have a lot of Atheltic cell or perhaps tempo, it might not be a bad idea to give them a 45inches dowel and a plane board, for some mechanical motion with their right tricep driving their left arm.