We are having an ongoing debate as to wether or not stain our 100 year old heart pine flooring. We are leaving the upstairs natural - doing a waterlox/tung oil finish. The downstairs is more formal. Complete with a sitting parlor and lots of antiques. I like the look of a darker wood for our decor, hubby is afraid that staining the heart pine will come out uneven. Has anyone had good success at staining their original heart pine a darker color?? If so, what was your process?? Thanks!