One differing item I forgot to mention in my previous
post was the upper handrail behind the cab on the
conductor's side. GE delivered 9500-9582 with a low
height rail which CP remedied with an extension. The
later orders had the now standardd roof height rail.
http://tinyurl.com/d76hts
http://tinyurl.com/b8p6yh
http://tinyurl.com/anrdl6
Rainer