I have put together a gym in my basement. It has just about everything I need, for now, and I love working out down there. However, the basement floor is not level. I would say that over the 100 square feet or so in the gym area, the floor slopes about an inch downward. See, my basement has sort of a crown, and it makes it so that no matter which direction I put the squat rack, I will always be on a side-to-side incline when squatting. I have started looking into self-leveling stuff for concrete floors...just wondering if anyone had any experience with it? Or has a better solution?