Just saw them both on Slough Railcam.
9P52 1113 Padd 9P60 1222 Rdg
345047 7 car
Full morning of observations from Railcam shows:
345028 9P12 0622 Reading to London Paddington
345027 9P14 0645 Maidenhead to London Paddington
345063 9P16 0652 Reading to London Paddington
345015 9P18 0705 Reading to London Paddington (7-car)
345054 9R12 0613 London Paddington to Reading
345007 9R14 0628 London Paddington to Reading (7-car)
345037 9R16 0643 London Paddington to Reading
345022 9R18 0658 London Paddington to Reading (7-car)
345064 9R20 0713 London Paddington to Reading
345021 5Z21 0958 Maidenhead Carriage Sidings to Old Oak Depot
345017 5G71 1046 Maidenhead Carriage Sidings to Old Oak Depot (7-car)
345066 5G50 1014 Old Oak Depot to Reading
345070 5G56 1045 Old Oak Depot to Reading
345047 9R52 1113 London Paddington to Reading (7-car)
345060 9R56 1143 London Paddington to Reading