Yeah, that rule #4 always goes over well with me, especially when they're serving beer at the concession stand. The Catholics in our area sure know how to run a tournament!
I don't know if I'd like the 'first score' rule. How about they treat it like college football? Each team gets one possession, inbound the ball at midcourt. The possession ends with a score or when B secures the ball. Repeat until there's a score differential.