Hey all. I've been given a song to add an arrangement onto, and am having a heck of a time creating a tempo map without messing up the existing audio. The song has a main acoustic guitar track, several additional guitars that enter later, and a boatload of vocal tracks that come in and out. It's a slow song with pretty lousy time, but I just need to get it in the ballpark. Logic was able to create a reasonably close map using the main guitar, but all of the later entrances were out of sync. I tried the old-fashioned method of playing a click, and again Logic matched that very well, but again it messed up the sync. I've tried it with Flex on, Flex off, Adjust Tempo, Automatic Tempo, Keep Tempo, and nothing works to prevent the audio regions from sliding around. What am I missing here? How can I create a map to match the performance without wrecking the performance?