I know there are a gazillion threads on J seating---sorry. I'd just like to know if rows 29 and 30 are OK on a 747 LAX-MEL. Four of us are flying, and to be together, we get 29AB and 30AB. I know 30 is the last row of J---is it OK? We are two couples, don't _need_ to be together, just thought it might be fun

My husband and I were originally assigned to 12AB (I've read the various opinions on upstairs vs. downstairs). For any of you who can actually _read_ the QF seatmap and tell which seats are assigned (I don't number myself among you!), we are flying on Mar 13 on flight 94.
Thanks!