X-wing tornadoes arent 50/50 there about 80/20 piste powder if not 90/10, at your weight, i would look at something like the line SFB, or even the opus if you already have a piste ski, if you have no intention of riding switch the rossi s7 could be a good ski for you, still stiff enough to handle your weight and with the softer tip and tip rocker they float real nice, while maintaing more stabilitly in the tail (it being stiffer and less rockered than the tips) The armada JJ would be another good option for you.