Originally Posted by akarneboge

That could be true. One thing I can say, however, is the left (facing forward) side of the aircraft with the smaller overhead bins in first to accommodate the 1-seat side has the very small overhead bins extending well into coach (to accommodate another row like the Envoy/PSA CR7's).

I'll have to look at the seat rails on my next flight to DTW on one.

One way or another, though, there is a 0% chance that these will ever get 9F. They're already CIP'ed with new seat covers in F and Y and the #newAmerican carpet. They're here to stay at 6F.