Multicopter tuning

Build

The tightets the build, the cleaner the flight will be
Tighten all the screws
Fix the cable using hot glue for instance
- A good tip, it putting a hot glue drop then cleaning it with cardboard, that way you only have the right amount of glue and it goes in the small holes
- Also hold the parts for at least a minute in the desired position so the glue can solidify
Weight distribution is very import, your quad should have most of its mass in the center and equal distribution of weight for each axes

If you have trouble being precise, do not hesitate to add expo to stick input
It's increasing travel of sticks in the middle for the same amount of movement and decreasing it at the end for faster response
Never add expo on the transmitter, you'll loose some stick definition
Add RC expo on Betaflight, starting from 0. 30% (0.3) RC expo is a good starting point
Add Throttle expo if you have trouble holding altitude, it's a very good way to control height and altitude

Rates can be configured at your own preferences
Usually racers will prefere low rates (without rc expo) and freestylers will prefer high rates
~600 degree/second for racing and 1000+ degrees/second for freestyle

Starting from Betaflight 3.2 filters are a different topic because it supports dynamic filtering
Activate dynamic filters right away, it'll detect unwanted frequencies in the gyro and filters it
On a clean build (tight and weight well distributed) you can switch low filter pass to PT1 and disable Gyro Notch filters 1 and 2
Always check for motor temperature when disabling filters after a calm 30s-1mn flight

Default PIDs are usually very good in Betaflight, most of the time you'll only want to increase P until it oscillates and lower it a bit
Activate antigravity mode to fix pitch wobbles on throttle cut

If you have vibrations or stange behavior at high throttle, note the value of the throttle and lower TPA breakpoint near this value
Attenuate or accentuate effect of tpa by modifying the value (in percent)