hi
If your sound post has Protools 7.4 the workflow could be like this.
– when recording audio to multitrack wave files on field – do stereo mix to tracks 1 & 2 (this is work-mix to editor)
– log and sync normally except sync only the tracks 1 & 2 to picture (all the other channels remain in multitrack file)
-edit
-send omf-file to sound post (with original multitrack files)
-protools can reconnect to multitrack wave-files and replace the work-mix with the separate channels)
and read protools manual before trying this I might have forgotten something.
Tjl
TJL