I am flying in to FRA (on BA) and connecting by train to Passau. My flight is scheduled to arrive at 8:30 am. There is a train departing FRA at 10:02 am. This seems like plenty of time to clear immigration etc, barring unforeseen snafus, but would like the opinion of those more experienced with FRA than I am. Should I book the 10:02 am train or go for the next at 12:02pm?

Thanks in advance for the input.