Originally Posted by
DL2SXM
When you booked it, was it with the BE equipped 757? If not, you might not have a chance at changing to a BE equipped plane. I did the same as you, booked JFK to SEA in K and used miles to upgrade. If the planes happen to get downgraded to a first class config, then I plan on calling and politely asking to be switched to a 757 with BE or to fly through LAX or SFO on a BE configured plane. Delta is pretty good with these things and making changes, as long as it makes sense.
I booked it knowing it was 7 rows... The only other one that had OU availability was also 7 rows. I can hope they change it out to a 4 row. It's really just the best way to do a TCON.