Hey! I have recently begun working out at a vale tudo school over the summer, and have been adjusting from gi to no gi grappling. One of the hardest parts of the transition has been adjusting to wearing shorts, instead of my long gi pants. The vt school has the square interlocking rubber mats on the floor, which have ended up tearing some of the skin off my knees, making it very painful to continue grappling. Has this happened to anyone else? Any advice on what I should do to avoid these scrapes, or how to get them to heal faster? I know I could wear knee pads, but I find them very unconfortable and I feel they limit my movement. I also could wear my gi pants, but I would rather not give my opponent's that extra handle on my body. Any advice would be greatly appreciated. Thanks!