Last year AP holders had to book with the best rate program. I did in November for a $49 a night rate at Pop. The rates are the best for the beginning of Feb. as they are value season. Once you get close to Feb. 14th (don't know the exact date of season change), you will jump up to Peak season as President's weekend is Feb. 17-19. However, if you start your trip during value season, your low rate will/should be honored for your entire stay. We are booked at the WLV for Feb. 4-9 and hope to add a couple of days on at the beginning if there is a good rate. If not, we'll arrive on Feb. 4. As for GP codes, I don't know. I'm guessing AP rates may be released Nov/Dec. They are releasing at very short notice now--ever since the best rate program failed (sort of like being punished).