This was a suggestion given from an atomic rep to one of my students. Read up fellas and ladies, it makes sense. Oh and by the way, the guy is 6' 235....most of you are probably strong intermediate skiers and advanced jumpers.
As an intermediate, if you were to ski the Atomic SX:11 or a serious GS ski, then 180cm would probably kill your legs before noon. If you were to ski one of the modern slaloms longer than 170cm you would be working against the design of the ski and be unhappy. I would look at either one of the recreational slalom skis or a mid-fat (on the thinner rather than wider side). Some good slalom choices might be the Rossignol Viper S (slalom) or the Fischer Sceneo 400 both of these in the 165 range. If you like to go faster, you'll like a little bit longer ski for the stability. Some good choices might be the Atomic SX:9, Dynastar SkiCross 9, the Bandit X, or the K2 Axis X these in the 175 range. Whatever you do, demo several on the same day - you will feel a lot of differences between skis. Good luck.'
We've all made mistakes in choosing equipment - part of the expense of this sport.