Just as a matter of interest, who intends to attack OOP rather than exploring?
Back in the old days I used to always attack OOP, but back then gains were based on relative land so attacking fatties with no defence was great. Now that gains are based on relative NW those fatties with nothing but soldiers will probably be half the NW of a good attacker so is it still worth while attacking straight OOP?
Obviously those who intend to war OOP it is, but those who want to attack at a larger size - do you just race to 1000+ acres by exploring/dicing and then convert after that?