... try making CJF's Umberleigh plan. I thought I'd better check it was actually buildable before I decide to make a layout from it I've done my best to follow the track plan, but have been having trouble with transition curves and reverse curves... surprised? I think I'm pretty close, but am a bit worried about some of the tight curves and there may be some changes of direction which are too sudden. Is anyone willing to give it a look over and point out the troublespots? Regards, David Taylor. 2076_010235_400000000.png Attachment: attach_1031_1439_Umberleigh.zip 238 posted: 1 Apr 2011 10:34 from: JFS Hello David, Good Stuff for one night's learning! I have not looked in detail, but I did quickly check out one "obvious" aspect- I notice that you have a lot of points which are- for example A 4.5. or B5. Such points are very inefficient in terms of use of space, resulting in very sharp minimum radii. I suggest that you go through and change each of the switches (Template> Switch ...