From my understanding, the /6's on this route run between Rochester and Rainham, and between Tonbridge and Paddock Wood. Owning SEHS, you can only really get up to a nice speed after Gillingham - only up to 70mph though - before having to slow down again soon afterwards for Rainham. I'm fairly sure the speed limit between Tonbridge and Paddock Wood is much higher, but would be the only section where you can really get up to speed, which is what the /6's were designed for if I'm not mistaken. My point is, I'm not sure if there is a lot of space to play around with the latter sub-class, as that's the one which interests me most. But like you, I really appreciate and am most welcome to having new sub-classes to drive around in.
4-car 375s do pop up occasionally on this route albeit they're quite rare. It'd definitely be quite a waste for the updated 375, and even the Tonbridge station model to only be used for a 20-odd mile "bus stop" run. No doubt I'll still enjoy it, as I've referred to it as a "third rail niddertalbahn" before, but I'd definitely rather be flying through Orpington or Swanley at 90mph. So I'm hoping this route will be a stepping stone for a bigger route with more variety. If true, then my previous criticisms of there being too much WCML can be thrown out the window!
