I bought the Mathews Z7 xtreme and I'm not sure if my bow was messed up from the factory, but I have to twist the nock side ways, more like an angle so the blazer vane clears the string. really is the how it has to be? I nocked one wrong by accident and let me tell you, I still can't find it. It shot 3 feet to the left. it just don't make no sense. thanks for your help and time.