I have been watching prices as it gets closer to the day I want to book (October 3), hoping to score Super Economy tickets from Milan to Venice. Looking at October 2 tickets this morning ( 9 hours behing Italy time), I saw the Super Economy tickets were already all gone, and there were limited Economy seats left. This would have been around 4 pm in Italy. Does Trenitalia release the seats for each day (120 days ahead) at midnight, Italian time? That will be 3:00 pm where I am, so if that is the case I will plan my day to be home then so I can book the tickets.
I know it sounds compulsive, but that is how I do things.