Same page on much of this..in fact, I was thinking of the phase switch of the mid to late 70s just yesterday.
Great job on the 2013 analog BTW....the snowfall was certainly far less in the NE, but that is a crap shoot. I didn't see your maps, but I am guessing that you had the cold se idea that everyone missed.
I def. factored that season in, but clearly not heavily enough since I was too warm. I expected a cold stretch mid season, but December and February were colder than I thought.
La Nina was marginal...I can see a case either way...but bottom line is that it was weaker, and weak events have greater variance, obviously. My idea concerning the ultimate intensity and orientation of La Nina worked out very well.