They are mounted at the front set of holes with 4frnt 816s.
I rode them about 5 runs on the front side of Vail and absolutely loved them. The first run felt odd because I was not used to the weight or riding a ski with edges. I am used to my AR5s that have dulled edges. So the second run I tightened my boots and man-handled them a little more and they felt amazing. I was afraid that this massive ski was way out of my league and only good foR mountain riding, but all skepticism was quickly thrown out.