Anyone interested in Caltrain operation should check out the Caltrain HSR blog, https://caltrain-hsr.blogspot.com/ . It's not just about high-speed rail. For example, last week the blog pointed out that the new trains take an extra 8-10 seconds after stopping at a station to begin opening the doors. Which chews up 12% of the trip time savings achieved by the move from diesel to electrified trains!
Why?