I understand personal emergencies, etc., but those who typically take forever with their untimed 1st round picks seem to have little problem adhering the one hour window for rounds 2-6. It would seem that common courtesy toward 23 others would be enough of an incentive to not abuse an open time window. If there were a personal issue, the courtesy of a brief note stating so is not asking too much. Given as much, I think a 12 hour window is sufficient time- then move on to the waitlist.