Nightmare with repaired AUDIO slipping out of sync ???

I have a concert shot on Sony camcorders 48Khz, and audio recorded to LOGIC PRO 44.1 Khz
My workflow is roughly this:
1. Log and Transfer footage into FCP.
2. Arrange the clips into a rough edit on the timeline.
3. Export the camera audio from FCP, as it is on the timeline. ( to 44.1 AIFF file)
4. Sync up the good audio in LOGIC PRO to the camera audio track.
5. Bounce the good audio in LOGIC PRO ( to Both 44.1 and 48 AIFF files).
6. Reimport the good audio track into Final Cut Pro, to replace the camera audio.
Logic is working in 44.1 as that what the multi-tracks were recorded in...
I tried importing the 44.1 and the 48 and both do the same
Theoretically, this should sync everything, lThe problem is the "good" audio from the Logic slowly slips out of sync with the camera audio.
BUT !!!!!....The WAVE FORMS SHOW THEN IN SYNC ????????
It just plays back a little faster....??? and goes out of sync
Another clue is that when I export the audio from the rough edit in the timeline (step 3), I can reimport the file that FCP produces and, when I put it on the timeline, it exhibits the same behavior: The exported audio track from FCP slowly slips out of sync with the EXACT SAME audio track on that's already on the timeline. How could it be slipping out of sync with itself after an export?
What a pain ??????

the Wave form is looking correct and all in sync
So, (to confirm) the audio waveform is syncing with the video?...very strange situation with the playback/sync.
Have you tried running Disk Utility/Repair Disk and/or trashing prefs? (I realize trashing preferences is a bit of a pain, but it does resolve many issues).
How full are the harddrives? What drive(s) is your media on and how are the drives connected?
K

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