I recieved my mouthguard friday from bitememouthguards.net. It was time for a new mouthguard. I was tired of the shock doctor becaue it never fit right and always restricted my breathing. I'm not ignorant enough to wear a boil and bite mouthguard. I have been seeing a lot of fighters wearing bitememouthguards (like all of Team Quest)Randy Couture, Joe Rogan, Eddie Bravo, Chris Leben, Mike Scwick, Chuck Liddell, Mahem Miller, D. Sanchez, Buenatello etc. I heard someone suggest OPRO, but they're in the U.K., and I wanted a company in the U.S.. Anyway, I made a very informative phone call to Bitememouthguards.net. I found out that all the mouthguards are made by the same guy, Thomas. Thomas can make any design that you send or tell him. If you have a picture, he can put it on the mouthguard. Thomas is from Glidewell Laboratories, which is the world's largest dental lab. He was the manager for the mouthguard department for dentists in the U.S., Canada, and Puerto Rico. His resume is impressive, but the bottom line was, I just wanted a great mouthguard that fit like a dream. Here's how it all went down. I placed a phone call, picked a design and recieved an impression kit in the mail a few days later. The impression kit is real cool. You basically mix this putty together, put it in a mouth tray, and bit down. This makes a permanent impression of your upper mouth. I sent the impression back to them and waited. About a week later I recieved the mouthguard in the mail. As soon as I opened the mouthguard I was shocked. It's not very bulky, felt rock solid and looked damn cool. When I put this in my mouth I could not believe it. It fit like no mouthguard I ever had. Instead of just having a piece of rubber that folds over your teeth, my teeth actually sink down and lock into this. It fits airtight! Seriously. I actually have a little trouble each time I try and take it out because it fits so exact. I tested it out with some hard sparring. I ate two hard crosses and a decent hook (I need to keep my hands up more and needless to say it did nothing to my teeth. It also makes the punches hurt a lot less as well. Another cool thing is the breathing, it's so much easier to breath in this mouthguard. Also, saliva stays in the mouthguard and there seems less of it. Theese things are rock solid. I plan to get another one purely for grappling. If you do any sort of serious striking or grappling, this is a must. Sig material!