... 2_260848_580000000.png Notice that the smallest radius is showing as 1052mm. This is the radius in the turnout road between the heel of the switch and the V-crossing. Now we apply some contraflexure: 2_260848_580000001.png With the expected result that the turnout radius is eased, in this case to 1739mm. But now we decide that we want a "straight-over-straight" V-crossing instead of the curved V-crossing, so we insert a zero-length easement to straight transition at the end of the turnout curve: 2_260848_580000002.png With the mysterious result that the smallest radius is back to showing 1052mm, despite there being no obvious change in the radius of the turnout. Zooming in we can see what is happening. There is indeed a short length of 1052mm curve, and Templot is correctly reporting it as the smallest radius on the template: 2_260848_580000003.png The rail over the very short red section between the end of the transition zone and the end of the turnout curve is curved at 1052mm radius, because at that point the main road is beyond the ...