Happily this mornings trip was onboard RM1650 which spent over a decade in Blackpool as 525 from 1986 to 1996. Also out was RML887 which ran wit the associated Transpora in Lancashire for many years.
The ride on the t15 is well recommended - it’s just like the old days. Occasionally two other ex Blackpool ones RM1583 and RM1357 - also make appearances, though generally the refurbished examples like RM1650 predominate.