Anyone ever have this done? Just another one of those recommended things every few years that we have never had done on any boat. I understand it should be done in the water. Just wonderin if that would clear up the slight vibration I'm still gettin around 3k rpm's? Is this one of those things thats not worth messin with unless its really bad and you got someone that really knows what they are doing? Never had any shaft work done or hit anything bad enough to pull the boat and straighten the props. Johnny's just got done doin the props again this year just to make sure.