Yazoo. Not to differ with Brother Dan, but yes you can. If you take a Right Wing Primary or Secondary, and split it, the bottom part of that feather is now a left wing and vise versa on the left wing. Although not as stiff or as big, they can be used as left wing. I would not use them for my hunting arrows, but definately use them on my roaming and target arrows to say my primaries for hunting and my best arrows