Sad I know, but I watched the evening peak at Paddington last night (16/12/2019) on Open Train Times maps.
Nothing at all sad in that - I did the same.

I’d recommend Traksy maps in this example though as there are route indications as well (most, but not all) which
OTT▸ are yet to include on that map, and you can see slightly more without scrolling.
6. Joing up units in the platforms in the peak is not a good idea, as the 'Calling On' movement from the home signals is carried out at a much slower speed than normal and occupies the station throat much longer, thus causing delay to departures.
Indeed, and it’s even slower since the Plymouth crash as drivers can go no quicker than 15mph from the signal and 10mph at the platform end.