Santiago,
I received my Milwaukee Road Atlas O F7's yesterday. I posted photos of the A & B units on an F7 thread. The rivet counters are really critical of my locos saying they are not scale accurate. I also have Atlas O F3's on order. Can you provide a side view of your units so I could compare the issues everyone is discussing on my F7's to see if it is also an issue on the F3's? I know you are 2 rail and I'm 3-rail, but I don't believe there should be much difference in them.
Thanks,
Bob