The new ones have a smaller tip and a larger cutting diameter, it was increased to 1.5 inches. They also serrated the front of the blades to help ensure full deployment. If I was to shoot an expandable the teken would deffinetly be the one. Ive played around with the new striker magnums and for a 1.5inch cutting diameter fixed blade it flies great. My buddy was shooting them out of his x force and getting great flight out to 70 yards, not bad for 320fps.