I stand to be corrected but... an HST (+8) could get to 100 in around four minutes, not too shabby. Look at it another way - a good HST westbound run starting at Reading would go through Pangbourne at 110. Today with a double 802 (10-car) we had 'lifted' to rumble through at 124 in 3m 43.15 from the start. With a mainly 80x service I would ask when the timetable will be tweaked to reflect this? I understand the timetable issues re. 'other stuff' - but it has to be done sometime.