Has anybody here actually hunted with this head? How well did the blade deployment work? I shot them today. They flew GREAT with almost the same field point accuracy But I'm just a little bit skeptical about those white collars on the front of the heads that holds the blades shut. Should the trocar tip be tightened just a bit with pliers to make sure the blades don't open during flight? How many people have used them and had 100% satisfaction with them?!?