Hi Josh,
Sorry for the delay on this, but as of Ultrix version 3.3 allows you to add up to 500MS of audio delay on input! (Requires an Ulrisync license).
At the time you asked however, this feature wasn't available. (3.30 was released November 2019)
3.40 is the current software now.
If you haven't already, I would happily help you out with the upgrade!
Thanks,
Jake
#Ultrix