For terms that FA's use:
777-300 with 28J - HD or 77P
777-300 with 40J - 40J or 773
777-200 - 772

As for the removal of 10 seats on the HD/77P/28J....they are only doing it to remove 1 FA. Bringing us from 12 FAs to 11 FA's. So if the service is now slower on your HD flight, you know why. Less hands.