Ok. So I just rinsed off a few of my jigheads after soaking all day in vinegar. You can tell quite a difference too. The vinegar was gritty. I guess from the oxidation.
I'm going to put nail hardener on the few I did. I've still got to order powder paint so I'll go unpainted on these few.
Thanks for the info and all the replies.
Y'all have been a big help.