Basil Jet wrote:
So the 92 stock are being got rid of already, including the W&C ones
which have seen relatively little use? Apart from the time the engines
fall off, have they generally been considered a disaster? As a passenger,
I liked them a lot.

I believe they've never been particularly reliable, and like the D stock,
they'll go early in the interests of having a standard design across
multiple lines. But they'll probably complete well over 30 years service
before retiring, so it's not a dramatically shortened life.

The ironic thing is that the Northern line needs extra trains in the same
time-scale, but I don't suppose there would be any chance of using
redundant 92TS on that line alongside the slightly newer 95TS. Had those
lines shared a standard design, it would have been feasible.