If you want to push in the corners, go with the dual runners. I tried 6" snow studs double downs for about 30 miles and had to take them off. It felt like I was going to get pushed into the trees on every corner, and I have the sled set up too. They did eliminate darting but there was zero bit for turning. But some guys like them a lot, I guess they just weren't for me and the way I ride. I just got some plain ole 6" round bar roetin bars at the yamaha dealer and they worked awesome. And they were cheap. I had the sharper bars on before that, but the little piece of carbide on the tip of the wear bar caught on just about everything(rail road tracks!) and I felt like I was going to bend the crap out of my sub frame. I didn't not like that at all. Oh yeah, flip your rubber and shim your skis too, if I remember to either 1/8 or 1/4 shim if you haven't done that yet. But if you still want dual runners, I still have my double downs for sale if your interested. The paint is still on the bottom of runners, like I said only 30 miles. I can send pictures if you would like.