I have to say the E-Flex has good venting, which also means being able to communicate easier with team mates, (both knocks against the Grill, hard to communicate, poor venting).
But I lost another one of those tiny pieces (theres two that hold each ear side to the strap, and one holds each ear from flipping up) .
So I'm bailing on the E-Flex even though I do like it, I just dont want to have to have extra parts to keep it functional.
Tried the new Virtue mask on, and I tried to buy one at the same store I bought the E-Flex at, Wicked Sports, (I dont buy new very often but when I do I try to support the local brick and mortars) they had plenty of them, just no all black ones, and no one in the surrounding area did either, most stores had none at all.
Ebay has one on the way though.
Update pending.