I think you have to be careful. The rules, in my opinion, don't do a very good job of telling us what a damaged club is. What constitutes damage that is bad enough to render the club non-conforming? I have heard a club may be non-conforming if there is a dent in the head. I don't think I agree, but you never know what any given official is going to determine as this is a judgement call...
The rules do say however, that a dented shaft is severe enough to render a club non-conforming. I guess we need to define dings as opposed to dents???
Sound like I'm not confident in my answer?
Note to rule 4-3a
Note: A club is unfit for play if it is substantially damaged, e.g., the shaft is dented, significantly bent or broken into pieces; the clubhead becomes loose, detached or significantly deformed; or the grip becomes loose. A club is not unfit for play solely because the club's lie or loft has been altered, or the clubhead is scratched.