How bad did I #$&% my piston up?

JohnnyRingo said
. I can BARELY feel it if I run my finger nail along it, but can't feel it when I run the tip of my finger along it. How detrimental is that/how bad did I mess it up?

Kyle

If you can't catch it with a fingernail, then it will be ok.

You may be able to use some emery cloth for crank polishing to knock it down a bit.