Hi, I'm going through my sled, and am rebuilding the top end. After honing, the cylinders are round, check that, and with the wisco kit that I have, the ring gap now is.010. This is within factory specs of .008-.022 but man that seems pretty tight to me what would be a good gap to shoot for? I was thinking about.013? Is filing snomobile rings to fit acceptable? I've done it for all automotive engines I have done, but this is a new ballgame to me.