I also use my uncoupling track's magnet as the closest point to the switch I can park a car/engine without fouling the other line. While I use Gargraves/Ross track, I do use the Atlas uncoupling tracks because they are shorter and cheaper than Gargraves and worked well on my last layout. Because I use #4 and #5 switches, I need a 7" straight section between the switch and uncoupler to get the required clearance, so I shouldn't have this dead spot problem. But after reading your comments above, I think I'll need to check my engines to be sure. Thanks for the informative post.