Lenny - I believe Olof answered the FCP X question earlier in this thread. There is literally a check box in the import window (under audio of course) of FCP X - that says "remove silent channels". With that checked, only channels that have audio - will be imported. So no annoying (yes - I understand it's a bit of an annoyance... but come on, us shooters have many, many more annoying things we contend with ) empty audio tracks.