With Lionel's announcement of a Legacy N&W J Class I would imagine there will be some good deals coming up on their several previous scale 'J's'.
There were two of them recently on the FS board, one with RS4 and the other with RS5. In looking at the videos of both, neither appeared to have 4 chuffs per revolution if I was listening closely. Guess I had assumed that RS5 would have the correct chuff rate?
What are the other differences between RS4 & RS5 with a steamer please?