Got some 125 grainers from Drew (thanks buddy) and although I have yet to try them on an animal, I can tell a real difference when shooting bales. They give considerably more penetration. The only problem is, I only have half a dozen right now. Looks like I will be buying some more so all my arrows will shoot to the same POI; the non weighted arrows shoot quite a bit higher, so I am having to relearn my sight picture, but it is well worth it. You guys shooting wood might want to give these things a try.