Victor Zanuesko

hello, i have made a video explaining the problem i`m having calibrating my gidecam hd-2000 gimbal. Please have a look: https://youtu.be/tP_kkxozrkI

Here is my problem. I have centered the top stage on the post. I have centered the bottom stage on the post. Now its time to align the gimbal so that the glide is level. Problem is when i spin the pan axis it falls out of balance again. Can someone tell me please where the defect is in the gimbal? how do i troubleshoot to find if the roll axis is the problem or the pan?