So many moments in 49 years of involvement in preservation. For me I think it has to be the first two "Steam on the Met" sessions. At the time I think it was unique for volunteer footplate crew to operate over a public railway amongst LUL's paid staff. Firing from Watford (Met) to Chesham, then the following year Amersham to Harrow and return. Driving within LUL Neasden and Ruislip depots. Riding the cushions on the steam hauled ECS Neasden to Upminster.