Saxman, you make a valid point with the numbers, so how about this. Limit the number of WW, and Osties in an arena based on player numbers? Not sure if it would even be possible, but just a passing thought. Could even limit the numbers that up from a given base.
MW for example, limit number of uppers to 2 of each from each base, heck I would even like to see the tiger fall under that rule in MW. As I said just a thought.