I've probably shot my last 50 whitetails with Thunderheads. I've made perfect hits, questionable hits and plain dumb AZZZ hits. The heads have never failed me. In that time I had one blade chip but it could have just as easily been on a rock when it went throught both shoulders and stuck in the ground. I've even gone to the point of buying several others and playing with them, but I never did like any better. They're solid. Make sure you use the UBARs on carbons.