I'm 5'7" at 170 lb's. I'm thinking of buying wider (then what I have now) skis (85's) and wondering if 158cm would be to short for me? I'm an intermediate skier and usually end up on the windy stuff and not so comfortable yet at higher speeds although I would like to learn to go faster as well. I'm on the east coast and take a trip or two to the west each year. I found a pair of skis I like at 158cm (the width is what I was looking for) for a great price but not sure if I'm going to be happy with them long term. I've read that the rule of thumb is that skis for an intermediate should go up to my eyes and 158cm does, but I've also read that at my weight I should have 165-170's. Will there be a big difference for me if I got the 158?