I'm using Logic 6.4 and am exporting the files for someone else to mix. I have trimmed all the tracks to the same start point, deleted unused and optimized all the files, but there are a few that are stubborn and won't destruct the extra bits on the front, which of course means they won't line up when imported. All but 5 line up perfectly and no matter WHAT I do, I can't seem to get rid of the extra bit that prevents those few tracks from starting where they should. When I look at them in the sample window the start point is at the bar it should be. The client is waiting and I don't know what else to try.