Is there a way to to know if row 6 (bulkhead seat seperating 1st and coach) has the flat wall or the cut-outs? I've tried Seat Guru, yes. Usually you know the general plane type (i.e. 737-400 or 737-7) but seldom do you have the tail number.
When you get the flat wall there is actually pretty limited legroom for stretching out. It seems hit or miss and I'm trying to figure out if it is limited to a certain type of plane (400 vs 700 vs 800 vs 900). It really is the difference between a comfy flight and not-so-much.