I've applied tru-oil to cork grips before. It will lightly darken the cork, giving it a rich (not dirty) looking color. This stuff will give different results, depending on how many coats you apply. it gets shinier, and slicker the more you apply it. If you apply too much, it'll become like a slick lacquer over your cork. I'd say play around with it some on some scrap cork and see what you think. It will do what you've read, but it's easy to go overboard with the stuff, too.