I'd say it's really a toss up between the 179 and 189. I'm 6ft and I have the 189s. I came from riding 189 Maden's, which are actually 191cm long, so I was used to it a bit. But the 189 Hellbents are 194.5cm long. They're damn huge. The rocker makes them ski like a small ski, but the weight is deffinetly noticed. It's not horrible, I mean I still do switch ups with the in the park and shit, but you deffinetly have to lug them around. Being as that you're 2in shorter than me I'd say probably go with the 179s, but it's up to you. If you are really going to keep them for pow, the 189s might be good. But if you want to get a little more versatility out of them and use them in the park and shit, I'd say go with the 179s. Either way, they are dope ass skis, and surprisingly get a bunch of pop off jumps. I have mine mounted at -1cm fron true center btw.