I've used the Aussie Oil on the pens I turned recently (a new direction for a short time). It works well but, I suppose, does add a slightly yellowish cast to the pens just like poly would I imagine (maybe less than poly). It does a great job of bringing out the grain in all the woods I've tried, but it does end up with a shiny finish which I suppose could be made less shiny with some sort of extremely fine abrasive.