Not sure if this is a transformer phasing issue or switch wiring, buss block issue. Loop A is the outer loop. Loop B is inner loop. Atlas Switch connects A to B. Tested one lighted caboose going through Atlas Switch from Loop A to Loop B. Lots of fuzzy/sparking electrical action at the pass point where each block joins via neutral pin set right after the switch, which is connected to Block A. Lionel Command is in operation on Loop A. Conventional on Loop B. Running to Lionel KW 90's. Lionel 2343 sparks likes crazy in this juncture and gets stuck. One thought is that when crossing the switch, one roller can be in Loop B and One in Loop B.......since that is two seperate KW's, I'm guessing therin lies the problem?
Mark B in N. CA.