I took numerous deer with the 2 blade! Actually used the same head 2 times on 2 different deer! They perfom as advertised! They are awsome. i will not however be using them this year as my set-up is a little light for a 100gr. tip! Only downside to this head is the $$. Also if your worried about the head opening in flight cause you don't take the time to check your equipment those little rubber bands used for braces on teeth work well as a back-up. just stretch it over the head and you will be fine! Note...this is not a necesaty if you watch what your doing! don't shove your broadhead down in your quiver,and double check them as you do all your equipment before use!