Hi.im looking at buying a 02 polaris 325 magnum.I hear a minor nock he says he has owned it for 10 years and has had the nock since day one .I think I believe him.says he used it for ice fishing every year and he looks the part for sure but thought I'd ask the question how likely is that nock been there that long amd hasn't turned I to a real issue? I'm buying it for my son to romp around on the trails.