where do you mostly ski? That would be the biggest question, if your an east coast skiier, midwest, etc. a good everyday ski is something in the 80-85mm underfoot range in my opinion, if your skiing out west everyday your looking for a ski atleast 95mm. I see many people ride 120mm underfoot everyday out here in Utah,I ride the Head Supermojo 105's 191cm and for the mountain i ski at its perfect... Sounds like your length should be in the 170-175cm range because your shorter, but because you are a big guy maybe something closer to 180cm would be appropriate, again its all about what mountain you ski the most, then make your decision.