I recently entered a two different beers into comp that were filled using this method. While they didn't place, there were no comments from judges stating oxidation. Good enough for me.
I've got my filler hooked to an adapter that screws into my Perlick taps. From the adapter there is a length of tube, just long enough for the wand and adapter to touch. This leaves the wand fairly rigidly attached. I just slide the bottle onto the wand, hold the bottle and bung with one hand, pull tap handle with the other hand.
I setup a folding table under my taps with a cake pan to collect any drippings. I really think I am going to exchange the racking cane with a bottling wand and see how that goes. Every time I fill a bottle the cane drips empty, thus pushing O2 into the next bottle. I think a wand may work better because it will remain filled (or at least partially filled).
I am also going to try using a hose clamp (with thumb screw) above the bung on the wand. This way when I force the bottle upwards on the cane, the bung automatically stays put. The thumb screw will make for quick adjustment for different bottle sizes.