Really depends on how busy the park is and if we have solid park plans but most days we try to place our order about 2-3 hours before we plan to eat so we can secure a pick up window. If we know which park we will be in the whole day, then I usually order our lunch when we walk in the park at opening so I have a set time. And what's nice is if your plans change, you can then change your pick up times accordingly, if there are windows open. I think the most important thing is to realize that at 11:30am, you may not get a 12pm mobile pick up time and next available could be 3pm. Especially now since virtually everyone in the park is using mobile ordering. But if you eat meals at off times, then it may be a moot point.