Suty -- I used Wolverine 125s for a couple of years because I like the shape, the way they fly, and ease of sharpening. Then I hit an elk in a rib with one and the entire tip broke off and the arrow bounced back. After that I started asking around and a great many other folks have had the same bad experience, with tips breaking even in 3D targets. Just not enough steel up front where it counts, and/or perhaps too soft or too hard (brittle). I wrote the Grizzly/Wolverine folks about the problem and recommended that they withdraw the head from the market until they get it fixed ... no response, which is normal for those strange folks. I don't know about the heavier Wolverines, which may have more steel up front, but I'll bet someone here will have the scoop. A similarly shaped and performing head that's really tough is the STOS. Eclipse is also super strong, but wider than the Wolverine or STOS. Good luck, dave