Midland runabout? Now you are talking!!! Had great fun with those, largely in the Derby/Leicester/Nottingham area as had copped most WR power by then. And of course the ticket didn't cover the through trip to Crewe.......!!!
D6331 was through Abbotswood on 20th June heading south on a PW train hence my specific date - the only other one I saw working at Worcester was D6342 on a saloon, but as D6331 and D6320 were the Gloucester trip locos that summer - that's the correct headcode D6331 is showing - then perhaps visits were a bit more frequent.
Cheers
Phil