Thanks Dave, so I can attach as second feeder along the track?  So just run another set of wires off the same points on the controller?  I have taken the tracks apart and no sign of corrosion, rust on the pins themselves, but perhaps on the inside of the track hole is a better place to look. Running 10 pieces track total, rather small circle around my tree.  Mostly curved pieces (8 out of the 10), so also wondering if that has something to do with it?