Our modular group (http://www.canadiantoytrains.org/) is having a continuing problem with the insulators on the center rail of the standard gauge loop. We are making handmade ones, but it is a slow process. Does anyone make them in bulk?
The insulators seem to be brittle and cracking. The modules are stored in an unheated garage. The trailer does have an incandescent bulb burning to keep the humidity down.