Unitrak for quick painless running. Atlas Code 55 flex or sectional track for more realistic looking track and ballasting. Unitrack won't bend so the temptation that you will have to make the track fit if using Code 55 track will not be a factor. Please remember that if you go with the Code 55, don't force it either sideways or vertically to fit. It may look ok, but you will have derailments and frustration. The same goes for Atlas Code 80. If it don't fit, don't commit to making it fit.
