I'm 5'8" and 160 Lbs with a size 8.5 boot and I've been riding the X8 155 and this board rocks. The last three seasons I've had Burton Uninc boards from size 158, 156, and 152. The X8 is softer and more playful, smoother on rails/jibs, and fun to jump. It carves well on high speed groomers, but not as well as the Uninc, because it is softer. Oh, and ICS is awesome, better stance options, and more cushin' on those landings! Great board!