I suspect similar, but not as pronounced, as the layout hasn't been stored long, and is now in a converted and well insulated garage. The plain track runs well, after only a superficial clean. Multimetre has lost its leads in the move, as soon as I locate them, will use it to test. If I haven't solved the mystery first. It seems to be the whole of the point - ie. from the fishplates at the toe end, so it may be the electrical connection via the fishplates. I bought the layout already operational, so don't think they have dropper wires. Next stage is to hard wire the toe of the point into the power bus with new dropper wires to see if that cures it.