Have no experience of any of them, but chatted to someone trying to get his Southerly xxx keel down. For some reason, something had jammed it. He said that things do get caught, but the sheer weight of the keel normally does the business. I have to say that he had not had the boat long, and didn't seem very clued up on his own boat at the time. Praps someone else will know if this IS a general problem with Southerlys?