Question is whether one can do an online check-in (say 24 hours before departure) but wait until one gets to airport before printing BP (using Mr. Chicken).

The reason I ask is that my understanding of UDU is that time of check-in is one of the tiebreakers. If that's the case then it behooves one to check-in early. I typically have online access but don't always have "printer" access 24 hours before flight.

Thanks ... and is check-in time a UDU tiebreaker? If not, question is moot