... end of the world, but thought I'd flag it up....H Hi Gordon, To get you properly started on this I would need to write a book. Which I don't mind doing, but not at the pace you work, it would take me a week or two. The bump is because you are using "A" switches. The turnout-road centre-line is drawn starting from the heel of the switch. There is a gap between there and the centre-line of the main road: 2_150926_220000000.png To reduce the bump you need to use a shorter switch. I did suggest using a 9ft straight switch. The shortest available switch is the 1:24 model-only switch as above, which would reduce the bump to almost nothing. To eliminate it entirely you would need to change to gaunt turnouts, with the gaunt offset set to zero. Unfortunately there is no way to make these changes globally, you would need to change each turnout individually -- put the peg somewhere other than CTRL-0 first. ...