We have run into this situation with Ross 11 degree crossings. I have one wired up per Z Stuff instructions using a 1000 switch machine to throw the power and it works fine. The two we are having problems with are in line on parallel tracks with about a 2 in piece of track between the diagonals There are parallel tracks with the diagonal crossings coming from a third parallel track to another track. The switches are throwing power to the rails properly, . They work good when a engine goes straight through but when running the diagonal they sometimes short out. Engines like a Premier SD 70 will go through the diagonal one direction and not the other. A shorter wheel based engine like a Genset will go through most of the time. Both the engines have dual roller pickups. Hope the description isn't too confusing.
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