Be very careful when buying a used prop, especially a Trophy. My past experiences with Trophy props has resulted in 2 props with a blade missing on each one. There are those low life scums that will sell a repaired prop to someone without mention of a repair. Ask for the history of the prop and if it has been worked or repaired in the past. Take a good look at the pics for extra stamps or markings (usually on the barrel), as all reputable prop shops will mark their work, whether it be a repair, B&B, etc… I advise that if you are not experienced with props in detail, buy a new one.