I will ask twice, without going to the huddle, and then it is a full. I've noticed that several people mention hearing from the coach before they get to the table or it is a full. Do you realize your partners are floating in the abyss behind you?
I talk in my pregame about timeout procedures. I will:
1. Grant the timeout
2. Find out full or 30
3. Tell my partners
4. Make sure we know where the ball is going to be inbounded
5. Report the foul
It took about 100 times longer to type that then it takes, but I do things this way so my partners don't have to wait for me to report the timeout before going to the correct spot. Also, it gives the teams time to go to the huddle before the timeout starts. Maybe this is just one of my small quirks, but I don't like to wander around waiting to find out what kind of timeout it is.