After it is down, test all along the track using the NMRA gauge. Unsolder and resolder where the distance between rails isn't right. Lastly, solder the guide rails down using the NMRA gauge. Clean the flux off with a toothbrush and rubbing alcohol, peel off the template, and you are done. It still takes me four or five hours to make a turnout.
Speed comes only with much practice.
These can also be used as patterns in making your own. That will be another article. K.C. MO Sept .