Has KCS taken over the UP? Well, not really, but check this photo out by David Hawkins: http://www.railpictures.net/viewphoto.php?id=237004 Shot in Dallas
I was on I-35 near Denton and spotted one of the ex-UP engines mated with a KCS unit. If I had the time and camera, I woulda taken a picture. Razzenfrazzen stupid errands......