12-16-2013, 10:54 AM
Looking over some of those photos, it seems like the units built for CN also had the upper louver sets that normally appear on US GP9s deleted so they wouldn't interfere with the CN road name in the green scheme. This is another thing you'd have to deal with if you wanted to be 100% correct. On the other hand, looking at green-scheme CN GP9 photos, it seems like after a couple of years, they were so grimy that no two had exactly the same shade of green, which is one more reason I haven't felt too bad about leaving my unit in factory paint and matching the added details as best I could. (For that matter, I see in a few photos that CN exchanged louver doors among GP7s and 9s now and then, too.)