"Break point, foot position, hold point, visual..."
We have new sporting clay shooters reapeat that till they hear it in their sleep. Eventually the cranial rectumitis clears and they realize it works...
I was instructed to teach, pre mounted, head off the gun. Thats an easy position for a newbie to learn. It helps them learn to see the birds and come to hard focus just before the shot.
I shoot pre mounted. Head position depends on the presentation...