I have to say that I agree with IDO about the GFS P tending to over amplify the pattern in FI. This makes the model for me quite unreliable and this needs to be sorted before it replaces the original GFS.
On a different note, interesting day tomorrow with the sharp transition from very mild and wet to showery and cold. Western areas should enjoy a fair few snow showers but with the warm ground temperatures I doubt any of it will settle away from high ground.