Monte55 said:
I might add that manual liftoff does not take full throttle at all. If I had it at full throttle at liftoff and manual, it would shoot up like a rocket and be a few hundred feet up before you know it. I wish they had a separate switch for failsafe.
See my post above..... Manual gives you linear throttle and will take off circa 50% (depending on AUW of your craft) whereas half stick in GPS or Atti DOES NOT equate to half/50% throttle... It is whatever the FC wants to give the motors given any set of parameters. Do not confuse GPS or Atti mode with actual 'connected' flying.... you are merely giving the FC an input (in this case throttle) which it then decides what to do with dependent on it's programming.
Altering idle mode will have nothing to do with how your Phantom takes off - It is there to alter the speed at which the motors will sit at idle at to overcome inertial forces from different weight/size/pitch props (and in some cases can overcome timing sync issues between esc's and motors).