Quote Originally Posted by Capt James View Post
Yes, anytime they are worked they are generally heated to add cup or bend blades etc., so depending on the type of work done yes. Heating them weakens them. If I see a prop has a lot of nicks and such then I would have it worked, but if it looks good I wouldn't touch it.
How many times would you say is to many? I run a lot of shallow sandy water so generally just adding cup and cleaning up the edges.