you are either making fun, have a terrible scale, or are using 30 din world cup bindings, I can't tell which.
Thread maker: average or on the heavier side for park skis at only 171. Look P/PX bindings are far from light and Chronics are not the lightest either. you will be fine though. My setup is 181 Pipe Cleaners with Tyrolia Peak 15s, about 13lbs/pair, so on the lighter side of skis that long with 15 din bindings.