I've ridden several boards with a Tex skin. In fact my lovely wife, Judy's board has a Tex skin. It looks sick, that's for certain. Over Divinylcell, IMO, it doesn't offer greater snap on a wakesurfer...although you're probably right as a skin on a wakeskate, I'll defer to your expertise, Itch. I think you really only get decent snap on a wakesurfer with EPS or Poly U. core. I can see how it would offer greater torsional resistance and therefore a more stiff board, I'm not sure that is desirable for a wakesurfer, where speeds are slow, and the torsonal stresses are low.
James develops his best air's with a lightly glassed Poly U board that provides considerable "snap". But I think the Phase 5 is designed for more rotational moves.
I'd like to see the board, I'm sure that the quality is excellent - if you get your hands on one, please post a pic.