How much snow is really going to depend on where the heaviest bands set up before the flip. Look at WB 0Z GFS compared to 18Z. Many of us lost several inches but there are those southeast of DC that picked up more this run.
I think the 18Z EURO AI compared to 12Z tried to transfer to the coast sooner....as a result there there was a tick SE with the snow. Whether noise or trend TBD.