G5 t3 ...... will not shoot these again at an elk, at 12yds right behind the shoulder if I wouldn't have shot his heat out I don't know if I would have found my bull. Only two blades opened up, and the stupid retention clips wouldn't lock the blades in all the time. and I kept having to reset them. Pops shot a standard thunderhead like he always has, and broke two ribs on a hard quarter away shot and through the opposite shoulder blade at 62 lbs. Tried the mechanical, going back to cut on contact!