Bobby,
Car 1 - Ends are labeled as A and B with A to the right
When I roll end A to the right over Operating Track1, A opens both ways – B opens occasionally
When I roll over Operating Track 2, B opens left and A not at all.
When I turn the car around with B leading right over OT-2, B open left only and A occasionally
Car 2 – When I roll over OP-1, A end opens both ways & B not at all
When I roll over OP-2, B opens left only and B not at all
When I turn the car around and roll over OP-1, B opens both ways & A not at all
When I roll over OP-2, A opens right only and B not at all
I tested the other two cars also with similar results