Well................. ask your neck source how many frets the neck has. If it has 21, this might require moving the bridge rearward away from the neck pocket.
Once again using the StewMac fret calculator we get the distance to 22nd fret (end of neck on 21 fret neck) on a 27 in. scale to be 19.423
27 - 19.423 = 7.577 in. (Distance from neck pocket to saddle)
This is 0.426 further back from the neck pocket than with a 22 fret neck.
The Fender Subsonic neck mentioned above was designed to replace the standard 25.5 in. scale neck of a typical Telecaster. The Jaguar Baritone neck was designed to replace a 24 in. scale neck found on the Jaguar. I therefore think the Jaguar Baritone neck and Subsonic neck have different nut to heel distances.
Disclaimer: When I say something.... always ask yourself ..... "What the hell does he know?"
I'm just not cool enough to be a Mac person.
I'm a PC and Windows 7 was my idea.