Didnt they say that depending on which level of the shout you use, the cool-down will vary?
that makes sense.
if you use a baby version of it, you should be able to use it again very soon but if you are caught in a real tough spot and use a big version then maybe you cant use it for the rest of the day-
That they did, and I'd say varying it depending on the strength of the shout you use. That just makes sense, if stronger shouts and weaker shouts have the same cool down period, there's absolutely no reason to even consider using the weaker one if you can use the stronger one. I'd also say aside from the level of the shout, it should also take into account which shout you use, Because certain shouts could become unbalancing if you can use them with the same frequency as some other shouts, for that matter, for some shouts, that might not even be necessary.
Regardless, though, it's important to find just the right cooldown time for shouts, if you make it too short, it's unbalancing, but make it too long, and you end up never using them, because you're always wanting to save them for "just the right moment". I get this problem with "greater" powers a lot. Since I can only use them once a day, I generally don't use them at all even if I encounter circumstances where I could benefit from them. After all, the fight against three minotaurs and two ogres may seem like a good time to use the power that will temporarily make me stronger, but if I use it now, I might not be able to use it again if I encounter a situation with an even more pressing need for it. No matter what Bethesda does, it has to be just right, or it causes problems.
And I wonder about the question Bodycool brought up too, does using a shout prevent you from using any further shouts during the cool-down period, or just that particular shout?