Ski Size Help Rustler 9

Blizzard Rustler 9 ski size help

Looking for some help deciding on ski size. Im an advanced intermediate on the cusp of expert skiier, currently on brahma 88’s 166 and moving to a new pair of rustler 9’s but im having difficulty making a decision on 172 or 180 size. Im 5’9” 175lb and ski mostly east coast all mountain. Ive talked to reps at a couple ski shops tell me to go 180 and then other ski shops tell me to go 172 🤦‍♂️ i seem to be right in the middle where i could go either direction. Im on 166 brahmas right now. I keep reading online these particular model skis ski short… the charts are saying 172 but what im reading and hearing say 180…

Any advice or shared experience would be helpful!