Hi Jon, sorry to have gone quiet on this , life happened, But the problem is still outstanding, We may still need to work together to resolve this, but I did just check and found a dropdown list in Sugar with Different values to those mapped in sugar.
So I have aligned the list values and have re run the sync again.
Issues showed up in the log file and I have emailed them separately to you. (firstname.lastname@example.org)
We also need to understand how the do not call\ unsubscribe mapping can work.
As I may have mentioned we are in the UK so something at the start of your (US) day suites us best, if you are available today, great, otherwise can we book something for tomorrow.