Tom asked a question, what constitues a Bat Maker on a thread on here somewhere. It was a good thread really as it asked the same question really. It depends what you mean by finishing a bat i.e what level is it when you start on it.
I'm surprised no one has pulled me up on post lastnight! That is, the Wisden Equipment guide, isnt a great leveller for bats really. There is no consistency in the bat requested, they don't check who makes them and just suppose the guy that tested a bat like a soft pressing they would have got a higher score or vice versa....