I don't think I would cancel over this, for one thing, it may change. Also, if you lap the park once doing the restricted rides once (or maybe twice if you get a fastpass with your regular ticket) and get all the multiple rides out of the way on the unrestricted rides, you'll be ready for a pool/lunch break and then can go back after 3pm. One of the advantages of FOTL is getting to take it easy and still get a lot done. You still can do that. Noon - 3pm is a great time to break from the heat anyway. If you really don't want a break, try to get some of the shows done before 3 so after 3 you can make that time all about the rides. If you are really ambitious, lap both parks and by the time you are done with that, it will be after 3. You'll have always achieved FOTL access for everything you rode, but done a lot more walking. There's also the single rider line if that works for you. Its not the end of the world but I would also prefer the once an hour rule before 3 as a medium measure. It calls for a bit more strategy in planning your day but still much less than a day at Disney.