I asked Jay’s if they could install a word clock input to the transport to allow it to sync with the Rossini Clock, and they said they could for a small additional charge ($300.)
That would allow you to use the CDT-MK3 with a Rossini in Word Clock 1-2 Auto Mode by routing Output 3 from the Rossini Clock to the transport (at 44.1 KHz), locking the transport to the Rossini Clock.