Two sports analogies:
This thread has the rhythm of a defensive ping-pong match featuring no slams, just returns. Not only are the two combatants relentless, but there are almost no neutral onlookers. Agendas are transparent and historical.
In real football(NFL) if a game is tied after four quarters, the teams go in a "Sudden Death". Simon, while you're tinkering with the format, could you include this as a new feature? Just don't bring in "Instant Replay"!
TMS