Something to think about. The MTH unpowered subway cars are essentially dummy locomotives, with the same truck blocks as the PCC and Brill trolleys. If the trucks had the same friction characteristics as freight cars, no problem climbing steep grades. But subway trains are really one car hauling locomotives--minus the motors, spur/worm gears and electronics.
That's why when I ran 10-car trains, I had two power cars in the mix.
---PCJ
