I would keep things as you have them. Remember that you can use a 9:00 fast pass right up until 10 or 10:15 with the grace period, so I would do that. You can potentially get through all of Adventureland in that first hour. That’s exactly what we did last week. We hit jungle cruise, magic carpets, and pirates standby with literally no waits, then used a 9:00 FP for splash around 10:00. After splash we used our 10:00 fast pass for big thunder.
My mom and sister took my 18 month old to the splash mountain play area while the rest of us rode, and then my mom and sis took my four year old with her when it was her turn to rider swap, so my four year old could go twice. In order for my son to go twice and qualify for rider swap, we all had to approach the fast pass area and scan our bands. The cast members asked who was gping in the first group, who was going in the second group, and who was going twice, and they scanned our bands accordingly.
After the first round of riders, my 18 month old was done with the playground, so my husband and i took her into the briar patch shop and she played with stuffed animals for ten minutes. It worked great!
When the group proceeded to big thunder we took turns giving her snacks in the stroller. Since big thunder is so much shorter, she didn’t have as long to wait around.
