Your broadhead weight should be determined by different factors on your setup. I mean the obvious difference is the 25grns. You need to determine how many total grns you need your whole arrow to be for your bow setup, and what your hunting. Your total grns of arrow to your bows capabilites effects the impact, and penetration. Your broadhead grn weight also effects the FOC of your arrow, which is important for tru accurate flight of the arrow. There's really alot more to it, than which is better. Its more like whats better for your setup!