I have Barkbusters and Tucano Urbano 323R muffs on my Ten and they work fine. Plenty of room for getting at switches, warm and dry.
I did however cut out the rubber plug on the inside that is supposed to go onto the bar end weight. They do not need any support there when used with the Barkbusters. On my second set now, the others delaminated after about four years of abuse!

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