I just spoke with a friend who had a SWG pool in my neighborhood in Florida for many years. He had the pool converted to SWG and the converter suggested that he leave the controller set at 50% and the pump running 8 hours every day year-round. He told me he did that for many years and never experienced any issues. It seems to me that the controller setting must have been adequate for summer use but his FC must have been sky-high in the winter time. That and his FC was probably often higher than desirable during the swimming season. Is there a major downside to this approach except for excessive energy use during the winter?