Sabre is... ehhh... The balance in 4.86 was fine, but I don't have any major problems with it now. However I wouldn't mind the powercore being swapped back.
The Eagle has lost it's place in my opinion. I like the logic in turning it into a generic all rounder, however as Govedo said it's way to big for such a role. A more perfect ship that fits the 'civilian all rounder' is the Ravens Talon. It has pretty rounded stats, to go along with a nice shape.
I find it a bit awkward though, that the eagle isn't fast. It's kinda implied by the name...