I have a Hagstrom Viking, and it is one of my favorites guitars.  When i first got it, I also thought the neck was weird, but now I love it.  Hagstroms have a proprietary "H" shaped truss rod that keeps them from twisting and makes it hard for them to bow.  As a result, they can make the neck thinner.  They are not Ibanez wizard neck thin, but they are far more narrow than a Gibson.  They also have very little taper, and a resin fretboard that feels a lot like ebony.  Couple that with medium jumbo frets, and you have a neck that takes a little while to get used to.
Here's the thing for me- the larger frets make it very easy to figure out where I am on the neck without looking down.  Also, once you are used to the thinner neck profile, it's crazy comfortable and easy to get around on, since you could barely fit a credit card between the strings and the frets and still have no buzz. Plus, I haven't had to set the neck in a year and a half. The truss rod is that good.