I went diving Wednesday morning and spent several minutes while we were on our way in flooding my mask and swimming with it flooded, and then clearing it the way Mike told me to do it. I still don't like swimming with a flooded mask one little bit, but my dive buddy didn't even notice I was doing it, so I must have been managing reasonably well. Just something to keep doing until it doesn't bother me any more. Lose the rattle, as Mike says.