Some time ago there was discussion about the value of working ground signals - were they worth the effort?   I said then that I believed they were, so I'll document my current effort with the hope of showing its not too much effort, and the results are OK.   I'm starting with the MSE kit for two GWR 16" disc signals - part number GS006/1. The kit comprises cast white metal signal bodies and lamps, with a small etch of the two discs, balance arms and back blinders. There is a piece of wire t