... see if I've got a misalignment somewhere there? 2787_010648_370000000.jpg And here's the "odd"support rail( the one with the dotted black line) shoved roughly in place to give me an idea of how it will fit and how I'm going to fix it, probably soldered to the brass strips and then slide chairs cut and extended in length enoug to still stick out the other side of the K crossing switch to do their job properly of supporting said switch. Difficult to describe so I'll post a photo when I've done it. 2787_010654_490000000.jpg And lastly a photo close up of the "odd" support rail where finished close to the K crossing. I shall be tempted to make this gap a 1mm one but suspect it'll end up being a bit more to not catch wheel flanges passing by. Well see! 2787_010706_390000000.jpg Ok, sad though this may sound, this is getting rather exciting. It's every bit as challenging as the double slip was and I've a feeling it'll work a lot better if I can only get the subtle curves right and switches a snug ...