I understand that flaps are deployed at certain speed but my question is are you using the airspeed or ground speed to do so.
I, for example, love flying the 772ER and 772F. Ive been deploying flaps using my airspeed not ground.
235kts - 1*
220kts - 5*
200kts - 15*
185kts - 20*
170kts - 25*
155-160kts - 30*
I know some of you guys are gonna come on here telling me that I have been doing it all wrong but in all honesty, I have found my flights and descents to be very smooth. (my crosswind landings are trash though, ask anyone in TFS)