Autotune Curiosity

@elkayem wrote:

Hi autotune experts...

I've run autotune (3.4-rc4) twice over the past two days on a new frame, and received results that are substantially different from each other. I actually have no complaints with how my quad flies, but am curious how the results can be this different, and whether this is within the expected accuracy of autotune.

Specifically, I am curious about the pitch gains, which dropped by a factor of 2. Is this typical from run to run? Should I run it again?

Parameter      9/17 Value   9/18 Value
ATC_ANG_PIT_P  6.926874     3.26085
ATC_ANG_RLL_P  10.74586     12.31241
ATC_RAT_PIT_P  0.1108658    0.06274559
ATC_RAT_RLL_P  0.09007517   0.07888731

Just in case anyone out there wishes to peruse the log file, I've placed it at:
https://drive.google.com/file/d/0B43bVwzZFricVlNFenJWVXB4Ujg/view?usp=sharing

No expectation to review the log file, as I have no reason to doubt the results. I am curious, though, to find other users experience with autotune.

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