I'm currently doing Peter Pan right now. And in most cases, depending on the needs of the production or the theatre itself, you more than likely will not call a single flight cue. This will be due to the fact that there will be too much of a delay between your call and the operators actions, and neither might be able to keep up with each other. The flying itself is a lot like dance choreography. My flight operators are all of my Lost Boys/Pirates and I have none of them on headset at all, so I have to consistently watch what is going on, while executing lights, sound, and calling other backstage cues as well to see that everything is running smoothly!
I would also keep in mind that if anything happens (i.e. flight choreography off, collisions, etc.) that you discuss it after the performance (with flight operators and whoever is in the air) and either work on it then or when you do your flight call before the show. Which is very important!
Out of curiosity, what company is flying you? We are very pleased with ZFX!
Happy flying!