1) L and H keys alone:
"XYZ request lower"
"XYZ request higher"
Then ATC calculates the lowest altitude based on AI traffic and flight plan (TOD or TOC not to be considered). This is handy before or if you are too close to destination. It's very important that ATC determines the altitude not the pilots.
2)C+L or C+R
one time "xxx Center, XYZ request left deviation due weather" (or right dev.)
ATC: "XYZ Left deviation approved when able fly direct ABCD" (next appropriate waypoint)
C+S+0 "XYZ"
3) Center tells you the STAR and Approach in use so you can prepare and brief the procedure before TOD.
"XYZ expect the ABC Arrival, ILS 25R in KBOS"
C+S+0 "XYZ" (optional)
4) ATC volume: Don't lower it, only the other pilot's. Usually ATC has a BIG antenna. Other traffic volume is good to be random, but maintaining consistently that volume at least for a while.
5) "Resume own navigation" instead I suggest "Fly direct to ABCD (next logical waypoint) then as filed, climb or maintain or descend FL XXX"
6) Instead of "Out of FL XXX climb to FL YYY JetBlue 123" just "Climb to FL XXX JetBlue 123"
Just like you have already in your ATC recordings.
7) Emergencies are essential for me, this is the reason I bought PF3, you can't do that in Vatsim. After an Emergency is announced: ATC will provide vectors and altitude clearances only if the pilot request them. PF3 is using a hybrid solution I noticed, it gives vectors and altitudes adding "at pilot discretion", but if you don't want them and you are on the emergency drill this is annoying just to hear all that and trying to ignore it. ATC main job is to deviate traffic for you and if you request assistance, then and only then vector you, provide info etc.
The keys for this I am not sure. But I suggest something like this:
C+S+E "Mayday, Mayday, XYZ declaring an Emergency, standby!"
ATC "XYZ, roger"
now PF3, while waiting for instructions from the distressed airplane deviates all traffic. ABC turn right my maintain xxx.... CDE hold etc,.." (it would be great if PF3 was able to vector and separate AI! maybe in a future release? this is really very important and expected from any program like this one)
Next command could be a number 1 to 6, to request:
1 Departure Airport no vectors
2 Departure Airport vectors for Approach available
3 Destination Airport no vectors
4 Destination Airport vectors for Approach available
5 Enroute Airport no vectors
6 Enroute Airport vectors for Approach available
Next command:
ATC "XYZ, do you require to evacuate on the runway?"
C+S+Y or C+S+N
All AI should be flying or hold on the ground until you are cleared of the runway