For anyone interested, I made a perfect tune for the Pavo Pico with Betaflight 4.5.0
At the moment of writing BF 4.5 is not yet released, but it is close to completion.
So I flashed 4.5.0_zulu to my Pavo Pico and did a new tune from scratch.

I used BlackBox logging and the PIDtoolbox to see the actual results.
PIDtoolbox is amazing and takes out the guesswork.

While the factory tune is already pretty good, I was able to make it better.
Because I run the Pavo Pico with the Walksnail 1S Lite VTX, it's also lighter in weight.
That gives some room to improve the PID's.

To reduce the CPU load on the flight controller massively, I changed the filtering from RPM to the regular notch filters.
Don't be fooled, the regular notch filters are VERY GOOD! 

My results:





A picture of my Pavo Pico:

A "diff all" from my Flight controller, including the above tune, can be grabbed here.
The tune is done with the stock BETAFPV 2S 450mAh lipo.

Happy flying!

For the die hard rpm users I created an rpm enabled tune as well.
You can grab it here.

Nice thing about enable dshot bidir is that it also reports ESC temps.
Just for the fun I added it to the OSD as well.

The rpm filtering does a slightly better job as you can see below.


Gyro:


D term:


The brown lines show the result of rpm filtering.
The red lines show the normal dynamic notch filtering from the opening post.

Happy flying!