VEPS went through their CODE 1 in the last years of NSE, as mentioned their MBS was extensively rebuilt to include a small passenger saloon creating a smaller brake van, they usually got the previous units MBS reformed in to them due to the longer down time during overhaul.
VEPS also went through a renumber to reflect the upgrade of the C1, the CIGS And BIGS(im sure BIGS code a C1) also went through same renumbering after code 1
all work was done at EASTLEIGH ZG1.
flourescent door strips also became added, to aid guard and platform staff on open or semi locked doors
I was always fond the MBS small passenger compartment, on the AM trip in to Croydon it was my preferred sitting location
As part of the C1 a repaint in to NSE was always part of the job
one normal job for VEPS was the 0735 VIC East Grinstead, When a VEP came off ZG1 and had been in for its SXP at Brighton they were normally lobbed on the circuit that included this turn
During this time the CEPs/BEPS also went through a midlife overhaul, having undergone their C1 at Swindon they were given a C3 at ZG1, also including a repaint
its been a long time, some of the MAINTROL ,CRCC and SR Division old school readers will cooberate this ...(ihope)