The notion that Miller A and B cyclogenesis are two entirely binary concepts is so archaic....the reality of the matter is that:
1) The vast majority of events are some sort of hybrid to varying degrees.
2) Most of our best systems are hybrid that carry s stream juice with n stream reinvigoration on approach south of LI.
That said, I would rather not see a system closed off before it gets to the mid atl, but I'm not so picky these days.