Hi all. My Spark dumped itself in Severn Estuary mud last year (detached battery in flight) and after recovering it and 4 hours of painstaking cleaning she flew like a bird. There are still a few specks of mud behind the gimbal and although it has worked very well since I am getting some “Gimbal overload” warnings and the occasional non-response when panning up/down-it does free itself usually after I have brought her down. Would it be safe to very carefully fire some dry lube into the joints where the gimbal moves? Obviously take great care not to get any on the lens.