Fastracks has jigs for Nn3 and N/Nn3 dual gauge turnouts. Some Nn3 modelers are also using the Rokuhan Z gauge track, which is very reliable and offers an ever-growing line of trackwork components complete with ballast, similar in appearance to Kato Unitrack. The tie spacing is wide enough to be passable for Nn3 narrow gauge and the turnouts are live frog for reliable running of even short wheelbase locos like the Searails 2-axle PowerMax units. - Paul Ingraham, Searails