The problem for the GFS is that it can only be downhill for it after that last run. It won't get any better than that for many. It has been steadfast for 3 days now, so I think changes should be mostly noise this close in.
I have railed on it this winter for showing us favorable outcomes at day 6 that disappeared by go time. But if it does it now at day 1-2, then what good is it?