64YOA's to 72 S/O
We looked at this the other day. The consensus was about a dozen 10 S/O's who would be ~64 next Feb would go to the 72. Now there may be some "younger" 10 S/Os who can't go to a window seat due to medical issues, etc. Those could also go to the 72 S/O seat. There are too many factors to make more than a WAG. YMMV.