I bought 2 Kato SD40-2's durning the summer and got to run them for the first time today. I've never seen a Kato setup like these are. They have a copper strip running down both sides of the frame under the walk way that picks up current from the trucks. One of them only get's current when you push down on it. Anyone else have these type of Kato's with this problem who have found a way to fix it? Another thing to add is derailing. The wheels have plenty of side to side movement but no up and down movement. The trucks turn as they are supposed to clearing everything but they don't have any side to side rocking motion in the frame to compensate for the unforgiving unlevel track. They rock forward and backwards but don't rock side to side and this is a huge problem. I'm not sure if this is a new design they have but it sucks because I'm out of idea's and how to fix it. This is the first time I've ran into such a problem.