Buffer fitted 43014 runs along the up relief line at South Moreton (Didcot East) on a bitterly cold 11 December 1991 with the 1O09 08:18 Manchester Piccadilly to Poole 'Pines Express'. 43014 was one of two HST power cars that were fitted with buffers for surrogate DVT use at Derby, the other being 43123. The remainder of the conversions (43013, 43065, 43067, 43068, 43080 & 43084) were undertaken at Stratford.