I love Soarin at Epcot as well.
When my little one was 4 she cried, because she was 2cm below the height restriction - and my eldest was telling her how good it was from previous visits.
My husband ran to the Frozen gift shop and purchased Elsa high heel boots, she put them on, and she grew 2cm.
She was so happy - and we all rode Soarin together.
It's one of my fav ever family moments.
Plus she got new boots!