Agree completely on loosening the mirror/lever brackets to prevent damage. Been doing that for 40 years and it's really effective. As far as the mirrors, someone makes handguards with mirrors inside them so they are protected. But they were really expensive so I adapted some folding mirrors to my handguards. There is more vibration than with the stock setup but they still work. As soon as I get into trees or tall brush I fold in the mirrors and they're completely protected.