Tippmann A-5 w/ e-grip, double trigger, 12' carbon fiber barrel, bottom line adapter, and pmi drop forward, and runs of comp. air.
Comfortable, light, manueverable.
none that I can see yet.
I just got these not that long ago. It is really a good mask. The only thing that could be better is the proflex mask. Those are alittle pricey though. This mask is flexible though, and I put a yellow tinted lense in mine, and it helps for the coolness look. It hasn't fogged on me yet and they are easy and simple to clean. They can only use water for the outside lense or special jt goggle cleaner. The inside of the lense shouldn't be messed with at all. It has a detachable visor, and chin strap. It is a very technological mask.
If you are looking for a very good mask then get this one, for 3 reasons, inexpensive, comfortable, and foggless.