No idea what you guys can make of this, but from my bedroom window in Dunblane I saw the 1T34 (I think) pulling in with a shiny new looking refurbished HST set. Trailing car was 43137, not sure if anyone can provide any extra info on this though.
Again, headcode I checked after the fact, but it was a GQS service stopping at DBL around 5 (give or take 45 mins).
EDIT: worked the 1A87 back up now, locos being 43131 and 137 respectively, again looked clean and new ( no dirty vines on the power cars etc), any idea on the set number from anyone?