I will say the HRRR extended runs at 00/06/12/18z have been pretty good this season IMO. I've watched it more than normal for whatever reason. The hourly differences can be crap, but the earlier runs showing a good hit from you to BOS were in that extended range that has seemed ok this winter at least up here. Who knows. It's not terrible when taken in the aggregate, just the hour to hour runs diminish it's value. It'd be like running the 3km NAM hourly, of course there's going to be a lot of variety.