need some help if possible. i recently purchased a used 27 txp b&b by mark of the prop boards, this prop has swapped hands a couple of times but is still in good shape. the prop was set up for a 202 blazer by mark , and it runs great but i have spun the hub twice in the past 2 months! when i recieved the prop it did not have the hub washer that fits between the prop and foot. i used my washer from my yamaha prop since both props where roughly the same hub size, and the washer seemed to fit. could this be my problem or is something else wrong? i am worried it may happen again , and it has only done it on runs 15 miles or more!