Good Evening. This is the first London Commuter service I've found to be impossible to finish. This is the 1W16 06:58 service between London Victoria and Brighton. The service is fine for 99% of the journey until reaching Brighton. I was greeted with another train held at a red signal in front which, in turn, was caused by a train blocking platform 3. This problem was caused as a four-car 387 sits in platform 3 while an eight-car service is suppose to couple to make it a twelve-car service. I assume one of these is a depot move? Unfortunately, the eight-car with its headlights on stops just a metre or two without coupling.