As the layout is almost finished apart from a little more blending and weathering, I thought some test shunting to prove the layout would be good. I used DY1 Dock Shunter D2950 as the first Loco to run on the new layout. I am using Spratt & Winkle 4mm couplings, not 7mm, see photos. Note how I use the original coupling hook as a ‘stop’ for the ‘Spratts’.