This has probably been asked a million times. What are the best filter make to buy for a standard? Looking for ND and CPL filters. Have read stories about the camera dropping down due to weight of filter and the gimble getting hot due to extra weight? Is any of this true? Was thinking the lightest in weight filters would be the best but want quality as well. Are there any user experiences out there? Cheers in advance! (Do you really need filters?)