Sorry, you cannot say that fcc is working by doing 1.03 kms.
I did 3.2 kms (withut any hack) in CE mode (europe)
The only difference you should note in fcc is that the controller built in fan starts spinning earlier then when in ce because more power is used in fcc. When i use boost config file (not fcc) i notice it starts much earlier and spins louder
This depends on your taste or task. I have the P4P+ and I have no issues flying with it or executing video or photo's...But I have often observed details in my work I wish I had noticed while setting up on the + screen, it's possible the finer details are less obvious on a smaller screen. It's a great screen is hands down better than my iphone 6 or Android Note 3 in daylight (no cover needed)