I only managed to get a seat the "200 bubble" once.
12 J seats upstairs, I remember no overhead lockers and lots of headroom, not to mention the iconic spiral staircase. I was flying BGI-LGW and a minor royal family member and his was wife were sat behind me. He tapped me in the shoulder not long after boarding and asked if he might nab the Daily Mail off of me once I was done with it. Special services were waiting to whisk them away in a Jag directly from the air-bridge on arrival at LGW.