Just a suggestion, but I think if we only did our 1st attack in the first 12 hours, that would give everyone plenty of time to attack their primary target. Once that 12 hour window ends, everyone can then perform their second attack against a recommended target.
I think this would benefit us twofold. One, people won't be getting irritated with each other over attacks, and two, by holding back the second attack there is less of a risk you'll be too overenthusiastic and blow it.