Nah with an average like that you'll just always get crushed... or at least "struggle" is a very relative term .
NNE climo is all about wind flow, you are right though... you saw what wind direction worked better than others. As suspected, E/NE flow is your bread and butter. W/NW works too. SW through SE seemed like the events you were more mystified about. About as one would expect though, a more northerly 925mb wind component is going to be better on that north side of the Presidentials than a southerly component. Good learning experiences.