I am 5'8 and a pretty good skiier. I am looking to buy a pair of either Afterbangs or Stepups, but I don't know what size ski to get. Will I have more fun on a 166 or a 177 and if I ski a lot of park should I get the Afterbang because it is softer or should i go with the stiffer Stepup. Any help would be greatly appreciated. Oh and I am skiing on the Anthem right now which I love. Thanks.