The "best" approach is almost always the one into the wind. When landing off airport when there is no windsock, one usually orbits the landing site at a low enough level to tell which way the wind is blowing (the side of the orbit closest to the site shows which direction the wind is pushing you). This is necessary and safe practice. This is all part of "landing... with normal aviation practice." I would not pursue this with the CAA if I were you. I doubt the pilot knows he wronged you. You can look up the registration online, and contact the pilot through the aircraft's owners.