I'm currently in an eternal war clan, which means we level fast (1010 xp until level 6 clan, at the time of this post no one has reached level 6 clan.) However, we do run in to a few problems-
As it is now:
Monday- start war at 5:00 Eastern time
Wednesday- war finishes 5:00, leader starts next search and 5:10, finds next war at 5:15-5:30
Friday- war finishes at 5:15-5:30, leader starts next search and next war is found 15-20 minutes later.
eventually.......
start war at 10:00 Eastern Time
train my war army overnight
wake up, war starts in 2 hours- can't farm, so I wait or demolish some poor unlucky person saving up for something
We wait a day to start next war so we can reset the time, losing a half a war's worth of xp.
As it should be:
Monday- start war at 5:00 eastern time
Wednesday- war ends at 4:00, leader starts next search at 4:40, finds war at about 5:00(give or take a few minutes)
repeat indefinitely....

