Gamerescape Interview: Summons, Chocobos, Train Tracks and Rocks

[Radnar]

All it needs is a short, 5 second cooldown or so (upon landing) so that you can always use it when you need to use it, but can't just continuously bounce up and down. Simple, and effective.

I think you are underestimating how long 5 seconds is when you really need to jump over something.