Replying to Armada T-Halls

http://www.evogear.com/skis/armada-thall-tanner-hall-2008.aspx
I've heard good things about these, like their great at rails.  Is this true?  Can they still hold it down on jumps?
I know the all-mountain performance isn't great, but how bad is it?  Also, how stiff are they compared to other park skis like anthems and ar6's?  They work well center-mounted, right?
From what I've heard, it sounds like they're a softer, more park/jib oriented version of the ar6's...  Good way to describe them?

Thanks