I've been on both lengths, and prefer the 185's. They ski pretty similar though, with the 177's only having a little shorter turn radius.
I love those skis though, they fuckin rip eh!
I'm 5'9" and I'll be rockin the 185's though for sure. I'd stick with that length if I was you.
Matt Walker already grew up a redhead, so I try not to ever give him too hard of a time. -John Symms