Good luck let us know how it goes. I suspect you'll have success in the F cabin moving around there are a lot of threads here describing people having success doing that.

I'm not sure how it works on 77W in J, but I can tell you I kinda hope it isn't released to the AA awards train...sorry! (making an assumption here). Regardless how it works out though let us know how it goes. There are so many seats in J and frankly, all of them are quite good. But indeed, in my book 11,12/A,K are my favorites, and I prefer A and K overwhelmingly as I travel solo.

My reasoning: I just swapped into an LAX flight (>72 hours out) that had just two or three seats left, I'm on a cash ticket in J, and I noticed that 11A/K were "occupied". However, without prompting MPC immediately called control, and row 11 was released to me as one of the last seats, and they specifically said "they're releasing it to you as a DM". I was very thankful, otherwise they were going to give me 24D (I'm traveling alone). It's a nice perk when it seems other benefits of being MPC are lost or diluted! Especially in J, it would be such a shame (in my selfish opinion) to be farming out those seats to enterprising AA members, especially since the marginal difference between, say 11A and 25A is very little, and it's a nice gesture towards MPC members to save 11A/K who are probably throwing cash CX's way at the last minute.