LHR ATC and mode S
Two quick questions about LHR ATC
1. I've seen it on this board before but can't find it back. Can LHR atc see the altitude you dial in in the alt preselect? Just the other day I came in LHR and got a decent clearance of I believe 9000'. I dialed the new alt in but accidently dialed something like 8700 I believe. I also got a new freq so I decided to dial the new freq before I would forget and then dial the correct alt ( bad form, I admit) but instantly the controller came back on asking me to verify the new alt. Can LHR atc see what you dial in the alt preselect window via mode S?
2. LHR atc is very good in providing track miles so you can plan a constant decent approach ( as is required) however,coming in from LAM and landing on the 09's that is almost never the case. They give the trackmiles but they ALWAYS end up more. If you don't take that into account you have a level segment. Have other people had the same experience and if so is the cda to the 09's not required?
Thanks