The Dark track with curves and some switch is available. Early in my quest for Light Gray's I had made the mistake of buying many from the Japan Auctions that looked like they were light in the pictures but it was just a lighting thing as when they finally arrived they were dark. One set with the darks that immediately comes to mind is the large Sound Steam D51 Set.
![[Image: 10048668a.jpg]](https://i.postimg.cc/Mc6PnWWf/10048668a.jpg)