Thanks - so if I interpret correctly, you have a couple thousand miles on the chain after peening the pin with the Park tool. That seems to be a pretty good endorsement.ericjacobsen3 said:I have one that I used. Was a bit hard to be sure the pin was peened. I just cranked down very hard and assume it was done. Really could only see a bit if inside diameter chamfer from peening and not a smooshed head. I never had the campy tool so I cannot speak to the difference if it is used. I at least haven't broken a chain in a couple thousand miles.