I think some of those other runs were going nuts with QPF there too. Probably tried to get dynamics involved. Looks like that shifted NE on this run verbatim. Should be cool to see Saturday morning up there.
How would April and May be better predicting the NAO? I don't understand that logic. To me, that is more of a product of late winter strat warming, where we are in QBO ascension, descension, and also ENSO state.