Yes London air traffic is heavy, even if you live on the outskirts.
The red arrows are amazing. I always enjoy their performances. But I just like their flypasts. I was in near the London eye one day last year, and all of a sudden they flew over with the red, white and blue. The most memorable experience though by far was in my hometown many years ago. I noticed people gathering on a bridge looking at the skies waiting. It turns out it was the Golden Jubilee's flypast with the concorde and red arrows. That was one of the last times I ever saw the concorde fly.
Aren't you lucky. :cryyy: