My thoughts with respect to the CC/increased compression correlation are that its not reducing the frequency of major storms at any one location, as like I said above, you are going to be more pone to compression issues somewhere when you displace a PV southward. However, I do think that it makes a repeat of seasons like 1995, where it was a an orgy up and down the east coast, a much taller task because we are more likely to see that aforementioned "zone of compression" than we were decades ago. ...THAT is a manifestation of CC.