Well, no luck since. And one time I was standing there sending out crew missions and in two minutes with around 50 people on the planet 3 people came by to check the spot... so there is a lot of farming going on.
The trick with the 6 glass of frozen water worked. I got 6 Magenta Crystals easy. While doing the Ilum dailies the same group that helped me with the Heroic (PS) went with me and helped kill the force ghost. Easy breeze.
Now, I need to farm those crystals. In the meantime I got the blue +41 crit schematic from Ilum and I am going to make those for my companions. Much easier to get the ingredients.