I'm not really qualified to make this post, but here is my attempt at extremely informal analysis. Only doing this because I've been interested in this storm and this storm is low stakes so if I'm wrong it can hopefully be a teaching moment rather than me being burnt at the stake. Please correct me if I'm wrong -- its very likely I could be.
I think (and if this is wrong ignore the whole post) what made the 18z ICON such a wacky/promising run was that the vort digs more over Tennessee. Looking at the 00z run, you can see the ICON backs off on this dig a decent bit, which obviously sucks.
That said, the 00z GFS made positive steps in that direction and have been for some time now.
00z GFS:
NAM is too long-range to really look at but I didn't hate how it shifted from 18z to 00z either.
I don't necessarily know what I'm talking about, but I don't hate the progress we've made today. I'm obviously slightly more optimistic than others because Charlottesville is a better spot to be in here than somewhere in NOVA or N MD, but I think this is worth a look still.