Bletchleyite
Veteran Member
I'd have a 745 from London to Cornwall or Scotland anyday over an IET, even with the Avanti or Lumo seats, as long as you're not over 6ft the softened FISA lean is the best modern era standard class seat. The cushion on those Avanti/Lumo seats is flat whereas it's arced on the FISA which makes puts less pressure on your backside.
The problem with seats that attempt to curve to fit peoples' backs is that they only fit some peoples' backs because not everyone is the same shape (which is why premium cars and office chairs have seats with adjustable lumbar support by protrusion and height above base). I personally find the seat in the 730/2 (a wider version of that in the 720 with armrests) fits my back very well, but there will be people who hate it. If you keep it simple like the Avanti/Lumo seat you suit more people. The LEAN really doesn't suit my shape - it saps legroom due to the thick seat back (a terrible piece of design), the "wings" are too low so hit my shoulders and the curve of the backrest just isn't quite right - I'd say I prefer the Sophia over it even with the metal bar issue. But yes I'm (well) over 6ft.
I think the aim should be a seat that everyone finds pretty much acceptable, which gives you something like the Grammar E3000 "Desiro seat" or even the contoured version of the "ironing board" on the 195 which now people are used to them and they've softened a bit don't seem to cause much moaning. It should also have a thin back and the supports in the middle rather than the sides, because men sit comfortably with legs apart and most tall people are men - the Sophia and the seat in the 175/180 do this quite well, the LEAN does the exact opposite, being designed effectively for tall women (as women sit comfortably with knees together) of whom there aren't very many.

