Inept analysis from the Grauniad.
The reason Ashcroft focused on those 16 seats was because 14 of them are in areas which voted Yes, or No by only a narrow margin, in the referendum. The other ones are Gordon, where The Fat One is planning to stand, and Danny Alexnder's seat, Inverness.
The Grauniad's extrapolation is based on a uniform nationwide swing of the same proportion suggested in these known Nat hotspots. That isn't going to happen. It never does.
---------- Post added at 14:50 ---------- Previous post was at 14:48 ----------
Incidentally, Operation Keep The Nat Out is going to compel me to vote Labour for the first time in my life this May.