Our March 25th cruise opened this morning for on-line check-in, and I just completed the process. The earliest time available for boarding was the 12:30-1:00 timeframe. Usually we've been able to board around 10:30-11:00. My question is....how strict are they on the boarding schedule? If we show up early, say 11:00-11:30, will they let us on or will they make us wait for our time slot?