From their desciption of the sizer die, it pushes the sized case back out of the die by use of a rod down the center and thru the die.
Pressing on the inside bottom of the case pushing it from the die, not using the case rim to pull the casing from the die.
For what reason they need to do that instead of using the case rim?,,perhaps the non-elasticity (right word?) of the case material.
It says their special dies can also be used for brass cases.
Kind of interesting stuff I admit. Reloading is a gageteers hobby.
$60/500 unprimed 9mm cases,,I guess that's OK, I really don't know brass prices. I just looked at Starline,,$74/500 w/free shipping.
But I've never bought a single 9mmLuger case in my life unless you count a few boxes of factory stuff over the years and then reloaded them.
Might catch on,,might go the way of the Tround.