I've borrowed two. The XL I 'thought' fit just fine. but it fogged like crazy - even after exit I did one four way pretty much blind the whole dive. It went well. - I did everything NWFlyer recommended - still no good.
I borrowed a L from a friend and found that it fit near my mouth and nose much snugger and allowed me to just breath through my mouth.
They actually seem to be sized pretty small. AND, they have a lengthy break in period. A new L is very tight and not comfy at all for me. But once broken in, it fits me very well. Something to think about or see if others have discovered the same.
(This post was edited by rehmwa on Sep 11, 2012, 1:39 PM)