JT Spectra, JT Proflex, Dye Invision(Pretty good, nice venting, goggles are cooler temp wise than JT goggles), V-Force Profiler(Best of the lot, but expensive)
Currently my A-5 for rec play w/ Dye TI Boomstick 14inch, E-Grip, Blade Trigger, Hyperstar bolt, running on compressed air.
Also use a stock Smart Parts Ion.
The bounce on these things, like just about any JT paintball mask, is what makes it so great. No other mask can compete with the JT Spectra and Flex series masks in this department.
Double Thermal Lens provide adequite fog protection for light use and for a decent amount of time I suppose. There are better for fog protection.
Clarity is nice for the first few games, of course all new masks are great at the start.
You can speak and listen with others clearly in this mask, it feels natural.
It doesn't have a large profile like the Proto Switch.
Price is a strength, it is worth more than what you pay, especially currently. You can find them for like 30 dollars easily.
Double Thermal Lens again heh.
The biggest problem with any JT mask using spectra lenses, ESPECIALLY the double layer ones, is that their lifespan is quite short. If the seal between the two lenses doesn't split before the lenses themselves are scratched up and useless consider yourself lucky. I suggest buying a new lens the second you buy the mask.
Today changing the lens isn't even worth it, it is quite the hassle.
The padding behind the ears is a little awkward, and uncomfortable, but it feels great after your first game when you get pissed and rip it out, that is if it hasn't fallen out already.
The padding around the goggles are like a sponge, the get so soaked and nasty with sweat and I sweat alot. But the anti-fog is still pretty good at first.
The visor, it loves the paint inside of a ball, remove that to highten your chance of a ball not breaking on your mask. The visor is relatively useless for anyone but a back player, but for rec use it probably helps. I never used it.
Well I really loved all of the spectra and flex series and I will recommend this product to other people, but don't expect it to hold up for very long. Though I am a pretty rough player it has been my first mask to ever give out on me and it truely pissed me off to no end when it did so my review may be a little biased.
For the regular player, or even pro player this is a great mask, I highly suggest buying a new lens when you buy this mask, but other than that be sure to keep up with it and keep it clean and all that good stuff, make it last.