i am 5'7" 150 lbs and this is my east coast touring ski mounted with marker barons. I went small with the 163's for tight new england trees and mostly icy conditions. i was a little concern with the length coming from a 174 salomon czar, however with only slight tip rocker they ski very similar in length (just not as much tail).
So far i have about 15 days on them, skiing them in low snow backcountry conditions and variable resort snow. i am extremely impress by their ability to hold an edge and they are super light which allows them to billy goat through trees and bare spots. definitely not as stiff as the mantra, but at a buck 50 i really didn't need the stiffness, and enjoy the lighter weight.
would recommend to lighter male skiers and or females. a great backcountry tool that will handle all but the deepest of days.