it all depends on what you do. if your 100% park then go for invaders. Much more flex. killer on rails and butters. overall dope skis. if your all mountain charging plus some big jumps and rails, then go for chronics. I am 5'7'' and im riding a pair of '08 chronics in 171. They are pretty dope but are stiffer then what i would like. If you really want the best of both worlds, go for the Anthems. They are wide for blasting shit off those jump landings and wide bases for rails. Whatever you choose though, you'll be fine cus line skis just kill it any way you go.