they are definitely some sick skis.  I liked them a lot better than the AR6's, but that's because I am a heavier guy and I liked the added stiffness.  The race bases are fast and can handle rails well.  just wax them a lot.  and they are super light.  a tad ligher than the AR6's, or at least that's what I thought holding the two.  I'd definitely go center, but 2cm back wouldn't kill you.  some fun ass skis.