"How difficult was it to make sure that you saying <a href=""https://www.youtube.com/watch?v=iZnLZFRylbs&amp;t=1m24s"">1:24</a> seconds lined up exactly with <a href=""https://www.youtube.com/watch?v=iZnLZFRylbs&amp;t=1m24s"">1:24</a> in the video? that must of taken quite a lot of prep"