Servers by jDrones

ATC_RAT_PIT_FILT - is it safe to change it from default 20 to 5?

I have a relatively large, 5 kg single copter. It requires high P and D values for PID tuning. This however makes flaps chatter/vibrate and rattle after arming. Reducing FILT value for Roll and Pitch below 10 makes flaps work smoothly and the chatter is reduced a lot. At FILT = 5, chatter is completely gone.

My concern is whether such low FILT value is safe. I’d hate to destroy the copter on its first flight.
I’d really appreciate your advice in this matter.

Servers by jDrones