why ? because when you want a quick battle - you have to set it to 20 minutes to check in, and another 20 till its time to drop. so if you want a quick battle, your opponent sits there and writes his shit for 20 minutes, checks in, continues writing for the last 20, and drops. so instead of a quick 20 min battle u have a not so quick 40 min one. U should have it so that u can set the time to check in to whatever u want . just an opinion.