I got my new Train- Li rail bender and wow what a great tool. I didn't want to by more 20 diameter curves for the new layout especially since I have 10 full circles of new 10 diameter rail in boxes. Re bending to 20 works like a charm. They have done an excellent job of engineering this tool. It work smooth and effortlessly. Big investment but well worth the price to have a tool of this caliber. The only thing I found to re bend to a bigger radius was to cut the plastic between the ties ever second or third one on the outside rail and remove the plastic on the inner rail.