If you've been happy with the Elans, and want something a little more all mountain, why not go with the Elan Waveflex 78 Ti? I've owned both the Speedwave 12 and the Waveflex 78 in a 176. I'm about your size, and the 176 works fine. The two skis actually ski quite similarly, so if you liked the Speedwave 12, than you'll feel right at home on the Waveflex 78. If you want to stay with the green theme, Try a pair of the Head Supershape Magnums. I also own a pair of those, and I love them. Approx. the same dimensions as the Speedwave 12. Perhaps a little more pop than the Elans, but they also have a lot of terrain versatility. If you want something a little wider, the SS Titan is basically a wider version of the Magnum. If you're not sure of the length it might be wise to demo. I can say with confidence that the Elan Waveflex 78 would be right for you in the 176. As I said, the Supershapes have a little more kick to them, so you probably could go either way with them. The Titan is a little more burly than the Magnum, so if you choose to go that route, then you might be happier on the 170. Best advice is always try before you buy.