Try the 'Block' system with MGM and Sea World
Disney MGM Studios and Sea World are different from the other big parks in that they are not divided into convenient 'lands' or area with a few attractions each. Some people might find that planning the day's schedule for those two parks is therefore rather more awkward. I certainly felt so myself. Therefore, I tried what I call the 'block' system with MGM & Sea World during our last visit and it worked rather well.
It is simplicity itself. All you have to do is to take a good map of the park abd divide it into certain number of 'blocks' with a small number of attractions in each block, depending on their proximity to each other - similar to MK's Adventureland, Frontierland and so on. Each party can choose thier own method of division, but I came up with 6 blocks for Sea World and 4 for MGM. It worked superbly and reduced a lot of stress during the actual visit. Of course, if you want to be really fancy, you can even give imaginary NAMES to the blocks.
It might seem like a wasted effort, but try it. It works.