Howdy all, Atlas Code 55 user here, both flex and rigid. Reading old threads, many people mention they solder feeders somewhere mid-rail. The question I have is how this is done? On the bottom? How exactly does one solder a bare lead to the rail in between the ties? Are you soldering the lead horizontally on the outside above the ties? How do you not melt the ties? How can you solder on a curved piece of flex with the sliding rail? I've always used a feeder soldered to every single rail joiner, but am curious how everyone does this "mid-rail" thing. Pics would be helpful!