I have a 2013 PYL, and I really love it. from what I've read, the 2013 and 2014 are quite similar, but the 2012 is very different (stiffer, less camber).
I rode it last year with a set of 2012 cartels and had absolutely no issues, felt the set up was 100% solid and never gave me any issues. I typically seek out steep terrain, pow and am always seeking ways to get airborne in such terrain.
I cant speak for the Flux bindings as I have never ridden them. But you will be good with either this years or last years PYL, but I wouldnt go with the 2012 model. There are multiple reviews on this site (search) as there are a few forum members who have a PYL.