I' ve heard different things about both. Supposedely mechanical are better because they fly just like field points, requiring less sighting-in with your broadheads before season starts. However, the killing power of them isn' t as great. Fixed blade broadheads usually have a wider cutting diameter and are much sturdier, making for a better kill chance. However, they fly very different compared to field points and require a lot more sighting-in pre-season. It depends on what you' re willing to sacrafice for what.
Mike,-