You guys are unhappy about a cage because it lets you pin people and want this? Did you watch it?I like the idea of sloped padded walls as a barrier(Yamma)...but it provides poor visibility for fans
would have to lose the fence and raise the seats/keep fighting surface as low as possible
and make the sloped area wider and taller
All that will happen with the slope is fighters are FURTHER pinned in a position that doesn't let effective grappling from the bottom to get back up. Fighters aren't "funneled to the middle" as the yamma creators said it would. They get caught at the flat to slope angle and the guy on the bottom doesn't haven't as much leverage and position to work. At least the bottom guy can walk up the fence to get the fight back off the ground. The slope gives even more advantage to the top guy.