i wouldn't go on a budget with a mask. that is one of the most important things in paintball, safety. and your eyeballz.
i would go i4's personally. i love mine. proflexes i didn't like because of the wide profile.
go to a store an try them out each, or at your local field.
flex's are nice cuz you can customize the hell out of them.
each person will tell you differently about masks, because each person has their own opinion.
DLX Luxe 1.0
SFT Dynasty Shocker w/ ups
Shocker FS; Luxe FST. PM for Details
End of 2014 Comeback.....