I would suggest using a good quality clock cable for the Puccini. The dCS technical staff recommended such to me. My experience validates this:
I use the Esoteric P-70 transport which has two different word sync terminals. "Mode 2" has a PLL filter cutoff frequency about ten times that of the other terminal and, per the users manual, "almost completely eliminates jitter". The manual, however, notes lock status takes much longer to achieve with "Mode 2" and essentially says to use the other more "forgiving" terminal. I tried both the generic dCS-supplied and a Stealth BNC digital cable - only the Stealth Varidig Sextet allows a reliable lock with "Mode 2", and the lock occurs with a second or two every time.
Just my 2 cents
I use the Esoteric P-70 transport which has two different word sync terminals. "Mode 2" has a PLL filter cutoff frequency about ten times that of the other terminal and, per the users manual, "almost completely eliminates jitter". The manual, however, notes lock status takes much longer to achieve with "Mode 2" and essentially says to use the other more "forgiving" terminal. I tried both the generic dCS-supplied and a Stealth BNC digital cable - only the Stealth Varidig Sextet allows a reliable lock with "Mode 2", and the lock occurs with a second or two every time.
Just my 2 cents