OK. So I'm looking at getting a pair of Kastle MX83s. I'm 6'2", 290lbs and consider myself an advanced (not expert) skier. I currently ski and LOVE a pair of Rossi Experience 88s in 186cm. I'm looking at the Kastle primarily for shorter turns and for zipping through the bumps. My Rossis are a little too long in the bumps so I'm looking for something shorter. The only 2 sizes in the MX83 that would be appropriate are 183cm and 173. 183 feels to close to what I already have. Am I silly looking at the 173s? Thoughts based on what I'm looking to do and my height/weight? Thanks.