I almost put this above but chose not to........because of how some of the folks get around here !

A little story may help your anxiety :

One of the bears my buddy shot ........he just clipped it's back on the first shot ! He knew something happened and hastily grabbed another arrow out of a full hip quiver ! He shot the bear and killed it !

Later we realized that in his haste .......he had grabbed a used arrow that he had taken a deer with ! The Spitfire was covered in dried blood ! While skinning the bear .........I examined the damage and it appeared that the blades opened as normal and made a full cut 1.5-2" after entering the chest cavity and the arrow passed completely through leaving a good exit hole !

He shouldn't have left that arrow in his quiver.........but he did..... and that's what happened !! If they will work completely covered in dried blood ......I don't think they have problems opening !!