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Message: [QUOTE="upperdeck, post: 5036150, member: 474"] The problem is that some studies show 50% reduction, some show 10-20%, and some show none.. But in reading deeper the studies also state that many of the blows that lead to issues don't result from contact to the head but to the mask as well. Its also that many of the studies focused on a small group of players in certain spots on the field. Its possible that 100 blows is an issue more than most single blow to the head. if 95 times it lessons a lesser blow and 5 times it worsens it is it worth it? the NFL is looking at it as a required thing for some positions. [/QUOTE]