The Gov Store feature is nice on the YGE...
The process involves getting the ESC to know what the maximum possible speed of the motor is with full batteries and remembering it.
Then you choose a Flat Throttle line 80% or 85% or whatever... that corresponds to the head speed you want. (You need to do this with a tach)
Now the ESC will always attempt to give you that head speed no matter what level the batteries are at.
Regular Gov on the YGE determine top head speed available with the current charge of the battery, so it can be inconsistent flight to flight, especially if you land after a minute of two and start again.
Hope this makes sense.
Futaba 14SG, Goblin 500, Synergy E5, Furion 6, Beam E4(v1) FBL, Skookum