I'm a DL elite that often flies the Airbus and DC-9 when on NW and always go for Row 5 on these planes. Never been able to get the handicapped seats online, but can get the other ones fine with my DL number in the reservation by using the interface on nwa.com. I'm booked in Row 5 on DC-9s for all my mainline flights on an itinerary that starts tomorrow.