XC Sliding Door HST Formation

[ThePeakNed]

Morning all, after some advice for a bit of a project.

Does anyone know what the formation of XC HSTs were after they received sliding doors?

From what I can establish, it’s:

TF, TCC, TS, TS, TS, TSD, TGS

Just unsure if more than one TSD was in the formation?

 

[gazthomas]

Maybe this will help:

The Engine Shed Easter Egg: Cross Country Trains Mk.3SD coaches. https://share.google/U0vB6p4Z6V7xd8o7Y

(Link to Hornby article on mark 3 carriages with sliding doors)