I shoot Thunderhead 125's, they shoot the same as my fieldpoints. What I did, which is probably not the issue, but I took my broadhead wrench and turned the broadhead where they were in line with my fletchings. I have heard that you don't need to tune broadheads but mine fly exactly the same as my FP. A friend of mine bought Crimson Talons and they would do the same thing as you are talking about but if I put my BH on his they flew true. There are more experienced archers on here that may have better advise.