A couple of things I learned/confirmed today:
- You can indeed book LL in your hopper park beginning at 7AM. Tipboard will still show next available time, but when you click the LL button to reserve - it will show 2-3PM (assuming availability hasn't already moved beyond that point).
- The 120 minute window from park opening is from the park where you made your first LL reservation. Not the park you have your park reservation at.
- You can stack - I made three LL reservations at MK (at 7AM, 11AM, and 1PM) before entering the park.
- Time can overlap - I had overlapping times a bunch. The system doesn't seem to care - so make sure you are paying attention to ADR time and other reservation times so you don't put yourself in a bad place.
- You can cancel a LL reservation both before the window opens and during the return time window. As long as you cancel, it will let you book again. (I've heard rumors that there is a limit to this - like if you reserve Dumbo twice and cancel twice, you can't reserve a third time, but I did not test that).
- Splash Mountain went down just as I arrived at the very beginning of my LL window. About ten minutes later my LL reservation was automatically converted into a pass that was good for the rest of the day at any LL attraction except the ILL$ and Peter Pan.
- Once this happened, I was able to make another LL reservation for Splash later in the night - so the converted LL reservation did not count as my allotment for Splash.
Oh and the way they handle the LL vs. standby appears to change based on crowds/conditions. I rode Splash twice post-fireworks: once using my any attraction pass and once using the new LL reservation I made. The first time through the line they were merging the line at the second tapstile and appeared to be taking relatively equal numbers of LL and standby passengers in turn. The second time through they kept the lines totally separate and filled 2 of the 3 boats with standby passengers and the final boat with LL passengers each load. The LL definitely felt significantly longer to get through the second time even the though the line seemed about the same length, but that is anecdotal, I didn't time it or anything. I just thought it was interesting.
That's about all I've got. I feel like I got my money's worth for the LL today, but not sure how much use it will have for me in the future. I may or may not end up using it for a DHS evening trip later this week - it just depends how things go. I think the value is going to be very dependent on your touring style and whether or not you can find a way to make
Genie+ work for that style.