When driving service N536 Coal Newell to Brunswick with the SD40-2 and AC4400 depending on what locos you are given at start, there is simply not enough power to get you up sandpatch grade from Rockwood. You are pulling up the grade at 12-15mph but as soon as you hit the 1,5% climb, the train goes to a grinding halt. When driving with 2 AC4400 you barely make it up the grade on good conditions. My suggestion is to ad 1 helper loco at the back when running AC4400 only. And add 2 helpers when running with SD40-2.
