Given that this thread has gone the usual way of class 700 critiques on RUK, it is also polarised between those who are fortunate enough to normally get a seat, and those for whom being able board their desired train would sometimes be a bonus. The former has little concern for their train's absolute capacity as long as they get their seat, against the latter who depend on mass people movers to get to their destination.There isnt an absence of full and standing trains operated by 700s by any measure. What is absent now is those trains leaving people behind in the peaks because people can’t board, which was a daily occurence with the 319s / 377s on the MML / BML / Sutton loop even when a few of them went to 12 car.
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I find the 700s good. (regular user of first and standard class).
To be fair there seems to be little distinction between actual first and declassified first in terms of use by non-first class ticket holders!
The simple fact is that the MML arm of TL north services are at the practical limit of their capacity having used all the options, (12-car trains, maximum standing room, short dwells with fast moving wide sliding doors, rapid acceleration to dodge into and out of high speed IC traffic). Maybe the GN side demands will excercise these measures in due course when more conventional outer suburban configuration trains are insufficient, making them only suitable for the long fast runs to Cambridge or even Ely in the peaks. The class 379s will reach their end of life well before the 700s anyway.