I don’t know about that. The GFS is shifting south and the other models are shifting north. The are meeting in the middle. You just notice it more on the GFS because it runs twice as much as the other models.
I know right... Everyone Sh!ts on the GFS... but the Euro and just about every other model does wild swing when it is 5+ days. The only difference is that the Euro goes from one Sh!tty solution to another and the GFS takes away HECS storms.