Postby John Trojanowski » Sun Oct 25, 2009 8:06 pm
The previously listed answers are good ones. Fencing masks are fairly easy to make slight adjustments, but due to their construction, you have to trade off. If it is too large top to bottom (chin to crown) you can place the crown against your side and s-l-o-w-l-y squeeze the chin with your arm. This will compress chin/crown dimensions but widen the left/right (ear to ear) axis.
I encourage slow pressure. You mask may last for quite some time this way.