I used a Dremel with a narrow disk to reach all the way to the plastic ties. I had to mod all seven of my switches this way. Another MTH quality control issue for me.
I would add that those short sections of track are controlled by the position of the points (that control the direction the train will go) through linkages internal to the switch. That linkage changes micro-switches to change the electrical state of those two anti-derailment rail segments. They become just an electrical extension of the adjacent rail in the switch direction and a electrical switch to control the solenoid such that the train forces the switch to a position of no derailment. It is all done by the micro-switches and the points.
LDBennett
