For those that think that there blades did not open on impacked! Try this! find some type of target that when you shoot the arrow into it, the arrow will only go half way through like one of those cheaper targets that are only a couple of inch`s thick. After you shoot go look at the broadhead? It will more than likely be closed! know look at the target very well and you will see where the blade`s cut the target going through! Just about all mech heads close back after going through there target`s unless of course something keeps them from closing.