I think the one you're talking about was the Superfighter tourney, which would see 4 rounders, and 8 fighters, so the winner probably would fight 12 rounds.

Here's the thread from before:
http://www.saddoboxing.com/boxing_fo...c,32097.0.html

I agree cockney, while it wouldn't be a true reflection of the sport, it could have been interesting to see some of the HW contenders stepping in together, and see how their styles matched up, though it wouldn't have been good for those who rely on stamina for their victories.