Raymond Herrera, yes, I believe he does play Cobras.
He plays alot of intricate footwork, really timing up with the guitars and the choppy riffs, mocking the rhythms, which I think is pretty cool. I feel his playing and style plays a very, very, integral, key part in Fear Factory's sound. Solid drummer, creative. I had the pleasure of watching him play live from 20 feet away from me or so, while I was standing on stage right, next to the bass player's rig, with some of the guys from Decapitated and Hypocrisy. It was when they were touring with Suffocation, Decapitated, and Hypocrisy back in 06. I met Ray when he got off stage. Cool guy.
Listen to Fear Factory's first album (well, he probably wasn't playing Cobra's then, since those pedals weren't around then), it's about as close to death metal as they got. Then Demanufacture came out, if I am correct and it delivered a big swift kick to the nuts felt all around the world. I love that album.
My guitar player ate Taco Bell with them at a music store while they were on tour in support of that album, haha. I thought that was rather odd.