Last year the Mech bug bit me bad and I finally gave in a got some. I ended up with the G5 Tekan II's and they where great last year with my Horton on carbon arrows. I have not tried them this year with my new vortex but they where right on with the field points last year. I know alot of guys use the fold back style and have great success with them, but something about them just turns me off. These are a cam style that slide back as they enter the target and are fully opened as they go in. They always left full cuts in the front of my block target and I always made sure before I pulled them out that they never did not open. But last year I was picky on my deer so I never had any blood experience with them. This year I will be less picky, learned my lesson! I am having lots of fawn pics this year and the good lord better guide there foot steps or they are lunch! Allowed four deer thisyear and I plan on showing no mercy for the first one! LOL!!