Originally Posted by YotaNate
No, I haven't tried doubles. I'm afraid that the 15hp Kaw won't have enough power. It barely gets by as it is. But I will give them a try this week and see how it does.
Same engine I have. It does pull down at bit with double high-lifts, but not enough to bother me.
Maybe try your regular blades plus a low-lift set... it will provide the extra set of cutting edges with less drag.