Being small, weight is important to me for performance especially climbing. I would go to a small instead of an extra small next time (my road bike is an old C40 46.5 which weighs 14.5). I have to move my weight back a bit fast bermed corners. The key to getting that light is every component has to be optimized - Maguro MT8's, Sram XX1, Stan's no flat wheels with Racing Ralfs, etc.