the 3.3 release note said:it can solve the problem"A number of users had problems with pitch control on auto-takeoff"
but it didn't work on my plane with 3.3.
i found the "nav_pitch_cd" is set to 500 in takeoff.
when the plane takes off in auto mode,the pitch begins to Oscillate.
but in FBWA mode the pitch is controlled well. i think it is not the PID's problem.