I know a lot of people like rings for mma but I think the cage is better for the sport. I was wondering why no one uses a square cage. I think it would be better for viewing live "less sides without poles" and would be better for fighters to cut off angles. Personally I would love for it to made out of plexiglass to solve the grabbing the fence issue and provide a clearer view. So, does any promotion use a square cage?