This photo that I posted last week, got me thinking........what determines how you point your engines in a "lash-up" ( sorry Rich  ?
The New York Central was a "long hood forward" company. I suspect that if turning facilities where unavailable at your destination, you might run your engine "back to back" like we all run AA units.
Does anyone do this when you run multiple units? I've seen pictures online and watched real consists (locally CSX and NS) that do it both ways ( back to back or back to front).
Lastly, I admit that I may be reading too much into it.....and it really doesn't matter!
Here are a few combinations.......they look fine to me either way!
Peter