Definitely be online at 6am with the website already open & your credit card at hand. If possible, immediately try for an ADR in the last few days of your trip to maximize your chance. BOG remains wildly popular. If your vacation falls during the Christmas Party dates, be careful about booking BOG on those dates after 6-6:30pm as you will have to buy a party ticket to enter or remain in MK. Don't forget about the BOG lunch ADRs which are also available on the dining website. While not as hard to secure as dinner, they also go very quickly.