Here's what I would like to be able to do.
Sync audio in RedCineX Pro (this part I can do)
output as ProRes with multitrack audio (this part I can do)
edit new ProRes media in FCP7 (this part I can do)
export an audio reference file (what kind of file would that be? OMF reference file? is that possible?)
import into ProTools linking audio tracks to the ProRes multitrack files (is this possible?)
XML Pro is the closest thing that I can find, but it still seems to reference original wave files that were merged in FCP.
Thanks for your feedback!