When I first saw them and messed with them I didn't like the spider clips but after seeing them in action from a couple deer I filmed Tommy shoot last year I decided to give them a shot this year. I couldn't figure out the clips and thought they were junk until I figured out you have to push the blades up pretty hard to get them to lock. Shot 3 deer with them this year myself and some of the other guys have taken several deer with them with no problems and AWESOME blood trails. If I get some time I will post a short video of the blood trail the last buck I shot left. It was 5-6' wide the whole way, by far the easiest blood trail I ever followed.