I remember reading that some 375s had the incorrect placement/amount of first class sections compared to the standard for the subclass when the refurbishment happened. One of the reports I believe was that a couple of /8s had first class at both ends instead of in the centre. It's been a long time since I read that so I might have got the exact details wrong but there were reports on those lines. However I have yet to see instances of these misplaced first class sections in real life, and I've long been unconvinced by the reports. Perhaps they were a miscommunication or people confusing /8s and /9s? Some clarification would be helpful.