They can't even count right:
"It has a glued-in neck made from superior quarter-sawn mahogany for improved strength and superior resonance, and a rosewood fingerboard with
22 frets. The neck is carved to a comfortable Thunderbird profile and measures .850" deep at the 1st fret and .900" at the 12th, with a width of 1.60" across its PLEK-cut Corian nut."
If only. How can anybody be so careless and sloppy in a description. A high E on a TBird would have been really something - alas!
I wonder if the frets are PLEKed too though? In general, the nut-cutting (come to think of it ... an unfortunate teminology to say the least) is the final stage in the PLEK-process and follows the fretwork, not much sense in cutting the nut without it. That might explain why they are dressed flat and not crowned? While the PLEK machine (at least the new generation) can crown frets you can find reports according to which it tends to flatten frets. That said, Gibson was not above putting out flat-fretted basses in the sixties and seventies too. Some of my vintage pieces could only be called crowned with the best of intentions.