This is the most fabulous of information! I would *never* have noticed the adjustable armrest. I think I'm gonna go with 8E - it looks like everyone will be angled away from me, so it will feel private, while still giving me aisle access. And I'm hoping that my earplugs and eyemask will render the galley traffic moot during meal service if I'm trying to sleep. Thank you so very much for this specific info! So helpful!