[front bogies derailing on modern locos]

The only things that ever derail on my layout are, for some reason, Dapol wagons.

I cant for the life of me understand why Dapol OO Gauge wagons derail but they do, I stopped buying them years ago.

[front bogies derailing on modern locos]

Unlike the Pizza Cutter wheels that were used by Hornby for years the wheel profile on modern locomotives are much finer, that is the main reason for derailments over points, I built a layout using Hornby track and points for American HO scale trains, out of 17 locomotives only one cheap and nasty one would pass through the points without coming off, American wheel profiles are very fine with a narrow flange other manufacturers followed suit in order to make the wheels look more realistic, only way I could get them to stay on was by lenthening the checkrail.

[Model Railway - What's your latest acquisition?]

Two Caledonian sets, three other 0-4-0 steam locos and various rolling stock items; love these little locos as they run fantastic including slow running with a decent power supply and controller.