all of those techniques are do not penetrate more than a millimeter so If you don't like what it does just sand it off. Well it might go a little deeper in places if allowed to soak. My choice would be to dye it a color and then use white liming wax. Betty Scarpino wrote a great article for American Woodturner on how to do that. One of the problems with natural edge bowls on Oak is you don't get the Cathedral type grain you get on flat boards unless include knots, crotches or limb sections so the grain can be rather boring.