99.99% success rate for me is soaking seeds in water, they'll float for hours. After about 18 hours or so, most of them should be on the bottom. If you still have some floaters, poke them till they all sink. Next drain most of the water out of the cup with the seeds still in it. Pour the seeds and some of the water onto a paper towel, and fold the paper towel in half, covering the seeds. Make sure the paper towel is very damp, but not dripping wet. Put them in a nice dark, warm place.. checking on the the moisture of the paper towel.. don't let it get dry. In the next 18-24 hours, you'll have tap roots. Insert taproot down in your favorite medium, give it a splash of water and watch it come up.