I have a Axi-605 for sale. Very lightly used, 2 shafts one has never been chalked or used.
PM me if your interested.
I also have a Mezz Z805 and PUJ12 for sale.
As far as how the Axi plays, I have played with both the Axi and the united joint and prefer the Axi with the wavey joint. The Axi gives a good solid hit where the united joint seems to stiff for my liking.
This is both with the WD-700 shaft, this shaft is great and has the same low deflection on par with my predator 314-2 shafts.
Peace.
Steve