Apparently, the Modulus made early necks were a myth (rrp of a modulus neck was almost as much as the rrp of the G Bass), and they are not actually carbon necks as marketed, they have a maple core with a carbon wrap.
Still cracking basses for the money of course, but really interesting marketing choice from Peavey; the manual literally says it's a Carbon Graphite neck with no mention of it being mostly wood. Crazy but there you go.
Still want it!