Welcome to the forum. I know of one "two blade" broadhead that flys better than some three blade. It even flys well over 300 ft/sec. It is the Magnus Stinger which is a two blade with bleeders. It is legally counted as a four blade. The spin true and are razor sharp, shapenable blades and the blades are easily replaced. Guarranteed for life!

http://www.magnusbroadheads.com/home.html