I just realized that the announcement for the 350V3 was made in mid-October. Maybe there are no graphs or specs because Axiom didn't have a chance to put it up on the pole yet.
I still like my conspiracy theory better though. If everyone loves the 350, then Axiom may decide to degrade its performance to prevent cannibalization of the 500 & 600. They can do that you know since the full specs aren't published.
Come to think of it, we better all buy 350s now before Axiom decides to degrade them. It's a good thing I came back to look out for all of your best interests