Now that CP is once again leasing CEFX SD90MAC's, they have become somewhat common, leading 454 solo in this case. Normally this is a SD40-2 trio train, with CEFX SD90MAC's appearing exclusively on potash trains once a month or so.
CEFX sure didn't spend a fortune decalling this unit, aside from '104' on the back there's nothing! Compare that to their popular CEFX AC4400CW fleet that has lines flowing across the long hood, same thing with their SD40/SD45 line.