Hey, I am just wondering if anyone has heard anything about Revolution Defense and Fitness BJJ in Eden Prairie, MN. Damien Hirtz is the owner/operator. I have seen him in action in person at NAGA chicago a couple of years ago, so I dont need anyone telling me he is good, I know that. If you have any personal experience there or know someone who has, you are the one I would like to hear from. Anything you have to say would benefit me at this point. Thanks yall!