Page Comparison

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SmoothQuickSource:
There is a virtual slider called SmoothQuick, and the PIDs you get are in the middle of the slider.  At one end is smooth which may be preferred for photography.  At the other end is quick which may be preferred for racing.  Once you have run the tuning, the FC will remember the tuning and allow you to change PIDs along this sliding scale at any time in the future (as long as you don't start the AutoTune process by staying in AutoTune mode for over 2 seconds while armed, even if you do accidentally start an unwanted new tuning you can just power it off without disarming to forget the new tuning before making it permanent).  SystemIdentSettings -> SmoothQuickSource is where you configure how to adjust the slider (it is not where you adjust it).  SmoothQuickSource = 0 disables this entirely.  The default of 25 says to access the next of 5 points on the slider by toggling the Flight Mode Switch (starting outside of AutoTune) into AutoTune and back out, 3 times (less than 2 seconds), but only if armed.  If you think of the slider as a scale from 0 to 100, with smoothest being 0 and quickest being 100, then you start out at 50.  The first time you do the fast FMS 3x toggle it will move you to 75 on the slider, then 100, then 0, then 25, then back to 50, etc.  So while you are flying the new PIDs, you can adjust them to suit you better in real time.  If you do the fast FMS 3x toggle while disarmed, it will always set it to 50.  You can also set SmoothQuickSource to be a number from 10 to 13 which corresponds to using Accessory0 to Accessory3 to directly adjust the slider, in real time, while you are flying the tuned PID bank.  The settings needed to be able to set PIDs this way are all in SystemIdentSettings.  They are Tau and the 3 Beta values.  'Complete' must also be True.  You can copy these from another FC or from a previous tuning session and 'export' your PIDs with SmoothQuick.