I know this has been talked about. But I want to throw it out there one more time. When I first got solo, the first gimbal I had, I never heard any noise out of it, I did how ever get it replaced because half of the time during flight it would go completely limp. customer service worked with me quite well to get that replaced. Then I get gimbal number 2. I installed it, calibrate, and it had a horrible whining when solo is turned on and gopro is in the gimbal. I contact support a few months later after trying a few things to get it to stop, with no luck. Again I was pretty happy with support. They asked me for a few things and then for me to ship it to them. Today I get the new gimbal. Well not new,( the box was marked up and dented and the paperwork inside was wrinkled.) and once again after installing and calibrating it still has the whining noise. So is this normal? should I not worry about it? or am I just having bad luck getting a good gimbal?