Not sure about Hitting...Long Irons/Woods don't work well....
Something to think about at least----
If a proscribed way of swinging (hitting), works for some irons (short) but not as well for others(long), is that way of swinging (hitting) really effective?
From a reveiw of the posts contained herein, it looks like most are having consistant problems hitting longer irons or woods. That being the case, is this a good model, or simply a "specialty shot" similar to a lob or flop, or punch, etc, that you might employ on a selective basis, rather than being a "standard way" of playing?
Also, there are "few" hitters on the tour(s), and even then, I am not convinced that those who are identified as hitters, "hit" on all full shots as a standard way of play.....