I bought a pair of Howard Leight Impact Sport muffs based on good reviews by people who said they have large heads and ears. They work great, but after 20 minutes they begin to hurt my ears sumpthin' fierce. I'm not Bozo the Clown or Dumbo the elephant, but I do have large ears and they're still growing after all these years, unlike other parts of the anatomy. I do not necessarily have a large head 7 1/4", so I'm not sure why they pinch so much. Apparently the size of the cutout for the ears is the key.....I think. I've read so many glowing reviews/comments I don't know where to start now. I'm thinking of getting something from a bricks and mortar store instead of the internet so I can return them easier. Any good recommendations/comments would be helpful.