Sam1911
Moderator Emeritus
but with practice, we'll get it together.
Might sound strange, but as soon as he's able, I'd suggest some clay bird shooting. The rush to get on a bird tends to speed up the "unlearning" process, and the high number of repeated gun mounts helps to reinforce the right habits.
As important as it is in developing the very basic principles, shooting from a bench is actually kind of poor practice. You learn a lot more, faster, in more dynamic shooting, IMHO.
Good luck! Sounds like you're on the right path.