For the people who get wind crystals more often... You are likely using companions with a higher treasure hunting critical rate, like Vette +5 crit. I've found more wind crystals that I knew what to do with using her. In opposition, when I'm playing as a jedi and trying to find wind crystals, none of my companions seem to come back with any. The theory is roughly proven, as I have gone back to Vette and keep bringing them in. Hope this helps, if you have crappy companions, you receive crap.
Good luck out there.
