... under the circumstances, don't think it matters a lot. Personally I start with the V. cheers Nigel posted: 9 Aug 2009 19:09 from: Martin Wynne Len Cattley wrote: This probably is a daft question, what does a check rail gauge look like as I have several? Hi Len, Usually like a roller gauge, but shorter than a track gauge tool. There is a flat f at one end so that you can gauge against the vee. Here's the check gauge tool for 00-SF: 2_160724_030000000.png v is the vee; w is the wing rail; c is the check rail; r is the running rail. Note that the check gauge tool engages v and c only, and is clear of w and r. This is the finished tool: 00sf_check_gauge1.jpg 00sf_check_gauge2.jpg regards, Martin. posted: 9 Aug 2009 19:16 from: Paul Boyd Hi Len The attached photo shows a check gauge on my test track. The right hand "ring" has a flat to sit on top of the adjacent rails, ...