I've been trying a northern approach into Heathrow's westerly runways numerous times now having PFE vector me down and the problem is, that ATC is always bringing me to close to the airport for the final right turn. The tolerance for catching the G/S is then extremely narrow, often making me overshoot it, especially with all the other stuff you have to deal with at this point (V/S, heading, ATC, flaps, checklists) at rather low framerates due to the density of the area.
When I watch videos on YT on the Bovingdon approach from the north, most jets start their final right turn to line up with 27 way to the east, some even as far east as the Millenium dome. They then fly along the entire city on the Southern side of the river smoothly lining up with the runway. In my case, I am asked to turn for final at a much more westerly point which shortens the final approach leg considerably.
I've tried with FAF at 2500 (which is according to the charts) and 3000, but in both cases I had the above problems, that the turn is asked for too early. How can I make ATC give me a bit more leeway to the east?