I have a train set that is O-27 I believe and it has 3 rails. well to me it doesent seem very realistic but I do like the size of these trains. is there a more realistic 3rd track desighn other than the standard metal one? also does anyone have pictures of their own or someone else's 3rd track set I would like to see if anyone has a 3rd rail set up that looks realistic. allso if you know a site with pictures of an 0-27 setup please post them. The reason why I ask is I want to be sure I want to expand my collection in this scale or if I should go to another scale?