Slightly OT, but have HSTs ever been used to haul anything other than Mk3s? Having worked a full HST set from Paddington to Hereford around 19 years ago, the set was due to run ECS back to SPM Depot via Bristol Temple Meads. This was a nightly diagram at the time, but on this particular night, our set developed a fault that meant it could not be driven from the leading power car, and we only made it as far as Abergavenny. We changed ends, and set about returning to Bristol via Hereford, Worcester and Cheltenham, only to be stopped at Hereford and informed that due to signalling issues, the route via Worcester was closed. We then had over a 2 hour wait at Hereford waiting for 2 HST power cars coupled back to back, to travel up from SPM Depot to us, couple up, and drag the entire convoy back to SPM. It's a shame that this happened in the early hours of the morning, as it would no doubt have been a photographers delight to see a pair of power cars (43185/151) back to back with a full 2+8 set in tow, hurtliing down the bank and around Maindee curve on its way back to Bristol.