Jake Johnson is a professional model maker, layout builder, kit designer, and former Senior Dimensional Designer for Walt Disney Imagineering. In his last appearance on the Thunder Mesa Limited, we went in depth on the art of model railroading. This time out, we delve more into the science of layout building with a focus on the hows and whys of doing things in a specific order. Plus we get Jake’s impressions from the recent 42 Annual Narrow Gauge Convention in Seattle, WA, and what it takes to build a contest winning model.