Collection of over 30 very useful articles from Railmodel Journal on how to tweak your Athearn model so that it looks and runs even better. With articles on modifying the locomotive's appearance (couplers, super-detailing, paint, decals, etc.,) and performance (through new motors, wheels, weights, tuneup, etc.). Each article is full of clearly explained information so that you can easily follow each step. Illustrated throughout with a mix of black and white as well as color photos. 90 pages.