I just finished a very long process of putting together a brand new saw to find that someone plant their sweat hands down right on the clean, pristine cast iron. I unfortunately didn't see this until days later and In this humidity (NC) started to form a bit of rust. I've tried Rust Free on a small section and see that I'd only be exchanging one set of stains for another. I tried wd40 and some 4/0 steel wool. This lightened them slightly. Will it be possible to maintain the consistency of the factory finish and the remove hand print stains?