I am booming for a friend who's directing, and not sure how to do this one. She wants me to record dialogue in a mastershot of two people arguing and they are talking over each other. But then I got two people's dialogue recorded on the same track simultaneously, thereby making it bad for editing later. Should I recommend that one actor mouth's there lines but doesn't speak, and then we just do half the takes, like that, then the other half with the other mouthing their lines. Then the editor puts recorded dialogue over the mouthed take of whichever master shot take is the best?