I'm interested in getting some opinions here on a project for the future. I'm not doing this right away, but I'd like to undertake it in the next year. I would like to create an Inglenook shunting puzzle layout in Z scale using Rokuhan track and Rokuhan rolling stock. For those not familiar, an Inglenook puzzle is a small operations layout with three sidings, eight same-sized cars, and one locomotive. The longest siding can hold five cars. The two other sidings can hold three cars. The idea is to create a deck of cards where each card corresponds to a specific car, shuffle them, then deal five out out randomly in a row. You then need to arrange those five cars as an outgoing train. (from http://wymann.info/ShuntingPuzzles) I have some things to figure out track-wise. I would like to use the Rokuhan magnetic uncouplers, the ones where you pause a car over a coupler and it detaches. I also would probably like to use Rokuhan rolling stock, the smallest possible. I see that you can buy knuckle couplers for Rokuhan rolling stock. Do these work well (or at all) with the magnetic uncouplers, or is it assumed you'd be using American rolling stock for the Rokuhan magnetic uncouplers? I also want to maximize space. How well can I expect the 55mm uncouplers to perform if set directly next to the turnouts? This would be instead of the 110mm notched pieces that come with the Rokuhan turnouts. I would obviously have to cut a notch in the uncoupler pieces. Thanks guys. Maybe some of you have done this before!