Silly question, I know....
Have to agree with Mr. Noyes about the jib hanks. When changing headsails, you want to be able to open the hank with your left hand and then guide it firmly onto the stay with your right, even on port tack. Trying to guide the hank to the stay using your left hand on a swaying, bouncing foredeck could easily double the time involved. Sailed an Ohlson 38 transatlantic and changed a lot of jibs.