I actually prefer to keep the factory one, I'll switch to F2 if I'll have further issues. So far it seems that everything goes smooth with the new drivers (for me at least).
By the way it seems that the F2 bios disappeared from the Gigabyte download page. It has been online for a week but now is not there anymore....
On the Gaming OC edition page the F2 is still present, on the Windforce OC edition (mine) is not there anymore (actually for the Winforce version there are no official bios to download).
If you want bios from Gigabyte you have to go to: