I have a digitrrax zephyr and was told to eliminate problems with the programming track I should solder a 1k resister across the track. Can I solder the resister acrossthe feeder bus wires or do literally solder it across the track? I am running ho locos. I have a digital soldering iron and use 600 degrees F to solder rail feeders. What temp. should I use to solder the resister?