Well if the goal is to keep the tradition alive of hand made bats, I don't see how churning out graduates after a 5 days workshop would help. He already has a established company and would have offered apprenticeship for a period of one month for a fee and then could have selected couple of best ones to work under him for a year and take his brand forward or help them out to open their own. If he can bring out two good bat makers every year, I would say this would be more than enough for keeping this tradition alive.
This is how he, keeley, kember learned the trait under newbery.. Working day in day out.. Churning out bats and learning along the way. This is hardly a text book thing which some one can learn in a small period of time.