Thinking about picking up a pair of either the Bonafides or Mantra's. For Mantras the size is pretty easy, I'd go with the 170's, but for the Bonafide I feel like I'm right in between. I'm 5'5", 110lbs, aggressive skier, in BC Canada (Fernie, Revy, ect). I'm stuck between the 166 and 173. This would be my soft snow ski as I have a narrower ski for hardpack/no snow in a while. I ski a lot of bumps and trees which makes me think 166, but also like to send some medium sized drops when the conditions get soft and for this I think I'd appreciate the extra length of the 173.
Any advice would be appreciated.