Really minor issue for CRR but when you go yo select the SD 40 in timetable mode, it has the production run listed as 1972-1989 which was the production run of the -2. The original SD40 was made 1966-72.
it also says you are driving the SD40-2 in the menu smells of copy and paste. though I suppose it's an easy enough error to make I had them confused for a month.