If the prong is above the top of the ear, you're looking at a shooter, especially in Wyoming. The average antelope ear is about 7" tall, so look for one that is at least twice that. A 14-15" buck is a nice first antelope, and a real nice one in Wyoming from what I understand. I like mass and nice curves myself, call it character, so I don't sweat the overall length. Of course in this state (NM), you need the luck of the Irish to get a tag, so I've only hunted them once. Took a nice 14.5" buck, but should have held out for a larger one.