I'm 6', 180+ lb, and have an UP169. At first I thought the board was neato. It turned effortlessly and held a line okay, was forgiving at moderate speed, and the base was way fast. Once I started railing turns harder and was messing around with my riding technique, I found the board to be sketchy at speed, and overly eager to turn with only modest input. I then favored a stiffer board. However, I do prefer the UP169 for moderate, softer conditions. And it's easier to thread through crowds than my FP173. I think of it as a carviing board I can relax on, but don't want to count on at high speed.