yeah dude im 5'7" ana 135 lbs. 171 in the older 1080s is about the perfect length for me, but i have the foils in the 166 cuz 174 was too big. so it pretty much also depends on which brand of ski it is, and what type of core, and the swing weight, everything like that. they all size a little differently, i always say for me id go anywhere from 165 to 175, i like to stay as close to the top of my head as possible. thats just whats comfortable for me. but if your going for a super light skinny park ski you can go way above your head like simon with his 181 pro model this year and i think hes only like 5'6" or somthing. an then i have some friends who are confortable with there park skis up to their chin or shorter. so just do some demoing an see which style fits you best.