then the impact may have changed the pitch of that blade. I'd bring it to a pro, and while you're at it bring the shaft and coupling.

I brought my last boat's prop to S&S Propeller in Queens NY http://www.sspropeller.com/services/ and they removed the shaft run-out to within .002", faced the coupling and reconditioned the prop, all for under $200, as I recall. That's a bargain, for a boat service (IMHO).