My mask goes over my hood, but still get the air in. From what I remember last year, the exhaled air from my reg found its way into my hood. As it went past my ears, some air would get trapped there momentarly (thus the reason for putting the holes near my ears instead of the top). My ears would open, then the air would pass and they close. Sometimes they didn't close fast enough. The constant opening and closing was very painful by the end of the dive. Perhaps I just have a cheapo hood and a quality one would fit better. I dunno. :sigh: