Matt5
To answer some of your Q's I'm no expert so please anyone correct me if I'm wrong.
Rows 8/10/11 are extra space seats, row 9 was removed a few years ago to accommodate this. 3x3 layout (ABC/DEF).
Row 12 ABC I believe the door bustle restricts legroom space and that's why TUI don't sell 12 A as extra space.
Rows 32 3x3 (ABC/DEF) are all extra space. As should be 2DEF at the front.
Hope this helps.