Importing into a DAW from ADAT XT20s

Archived from groups: rec.audio.pro (More info?)

I have a situation where I am going to add some pedal steel overdubs to
a mix that was done on a DAW (protools, but this is immaterial since I
don't use a computer only the XT20s). This is a long distance
collaboration, I will record my part in my studio, send them something
with the parts, then they will import and mix.

It appears I will receive the tracks on a CD (since they have only a
computer, no hardware ADAT to make me a tape),

I will dump the tracks to the ADAT. I will then record my parts, and
have an ADAT tape with my parts properly sync'd to the music from the
CD. I have a BRC and and can create a track of SMPTE on the ADAT tape

If I send back the ADAT tape and the tracks are retreived via playing
the tape and using the ADAT optical, there may be a time offset from
the import, but that is easy to fix in the DAW, correct? They other
party does not have an ADAT but could borrow or rent one, or have the
transfer done by someone in their area.

As an alternate, if I send back a CD with the music on one track and
the steel part (mono) on the other track, can they use timing cues from
the tracks channel, like by looking at waveforms, snare hits, etc to
correct for any offset when the import is done?

Or maybe they should send a CD with all the music on one track, and
then the other track could be SMPTE timecode. I guess I could then
send back a CD with the SMPTE on one track, and the steel part on the
other?

I am looking for the the most foolproof way to proceed with this, the
SMPTE seems like it should work but maybe there is a better way.