What do you think of the set neck ?
A set neck like used on the 4000 has quite a bit of surface area, since it goes all the way under the pickguard. It would be very hard to tell it from a neck through, sound wise. Also although the neck though does continue to the bridge, it's routed quite a bit where the bridge pickup is.
I've made a number of set neck basses, where the neck is inlaid all the way up to the neck pickup (which in the case of these basses is more where a P-bass PU is located) and they sound pretty much the same as the neck through I made.

