Got my first round in with the XCOR2 irons. Beautiful clubs and really perform. But I definitely had problems with the longer shafts. First round was at high elevation and a 2 club wind, so I cannot really say how far these go. Hit some very nice shots, but all of them were well past the pin (most well over the green as well). Vast majority of iron shots were struck well, but pulled way left of line. That is a swing problem of mine lately, but the longer shafts seemed to make things much worse.
I'll give these a few months tryout, but I am going to build up a shorter heavier 6 iron with an extra STi head I have on hand, see if the shorter length works for me. I doubt I would cut down and add weight to the PXG set, it would be easier to just sell them an order another set to my specs.