Pretty much the title. It's a manifest train powered by two GP40-2 (with DLC, don't remember how it was without one), and it struggles to climb 1.5% incline after Hyndman, and only could crawl at 3-5 mph. I left it in the background and watched streams and stuff, and managed to slog through it, but then there's an even steeper climb before Mance, and the train finally stalled. I had to decouple some wagons and leave them on the mainline to complete the service. I suspect this was previously an SD40-2 service, because I had it completed, and I don't remember this problem. EDIT: Apparently there's another version of Q353, and it's powered by two GP38-2. And they have no trouble whatsoever climbing uphill, I can even shut down one engine, and still climb at ~25 mph.