What is the most efficient way to counterbalance the H3-3D Gimbal after installing the Polarpro ND Filter 2.0? I have read posts about attaching coins to the motors or backplate or camera. I think the best location to start with is as close to the lower left side of the Gimbal backplate. There is not much room there due to interference with the leveling pivot. It seems like a lot of weight is required to get a good counterbalance. What have you all experienced and any issues with Gimbal performance?