On most of my recent ZRH-LHR-SEA and back flights I've had to have rather long connections. This was mostly due to BA cancelling the mid-day flights. So, I'd be getting into LHR at noon from SEA and then having to loiter in the lounges until 17:30. More flights could help with this.

It would also be way better if LHR could get much better with its ability to connect passengers without requiring all of the hassle we currently have with the extra, unneeded security check whilst connecting.

Finally, if BA would protect separate tickets and check through bags, I wouldn't have to build in a security buffer so that I have enough enough time to get my bags in between flights and check them in again.