I've been in his guillotine and it's definitely tight. I can't find any video but from what I've seen it's like a front choke with your hand in the throat. It seems like he sort of cups the throat with the ridge of his hand, not even his forearm at first. He pulls your head with his left hand like a snap down in to a guillotine, but he pulls your head so your throat goes straight on to his right hand cupping your throat with the ridge of his hand. At least he tried that on me a few times. I don't remember exactly but when he did it to me I am pretty sure it just turned in to a regular (really tight) guillotine as I tried to defend. Everyone at the gym says how good his guillotine is and from what I'm reading here, a lot of other people do as well. One thing I know is that he doesn't use the Marcelotine (high elbow guillotine). I asked him and he said he just doesn't like it for his guillotines. He's a really nice guy though and very knowledgeable. I'm stoked to train with him!