I have read about different balancing techniques (putting on coins/washers on back of gimbal camera bracket and end of gimbal) when you add anything to the GoPro Hero 3+ (i.e. lens protector, ND filter,etc). Since the Hero 3+ is smaller and lighter than the Hero 3 can the gimbal compensate without burning up its motors? With the lens protector on it appears that the camera is unbalanced until the gimbal is on and then it looks like it tilts and operates just fine. So is there a need to balance or can the gimbal compensate when P2 is on and in flight? If it is best for the gimbal to not do this much compensation, what "real-world" experiences have folks found to work best for balancing the camera with the lens protector and/or filter? Also, in putting on the lens protector it looks like it is hitting the bracket that holds the camera in the gimbal. I think it will mean sanding a little off of the lens protector's base ring to get a good fit. Are there other techniques that are better to get it to fit with the bracket? And, I am assuming this will be the same with the Polar Pro ND filter, right?