I've used the rooters, but I only grow 2 - 4 plants at a time. In the meantime, the leftover rooters tend to get mold and I have to toss them out. So instead of rooters I soak my beans for 24 hours, then they go in a Tupperware container, (between a damp paper towel), on a heat mat. Once they have tails I plant them in the double dixie cup, (which is 1/2 full of my grow medium). I water the medium prior to planting, and then use a nail to make a hole. Plant the sprout just deep enough for the cracked seed to show, and then sprinkle just enough dry medium to cover. I then cover the cup in plastic, and place it in a warm dark place. Once the sprout has reached the plastic at the top of the cup, I backfill with medium, water, and place it under the light. I also put a clear dome over the cup to hold humidity. I know this is a long post, but this method has never failed me. I've tried other methods and been hit with damp off, or seeds not germing. Again, sorry for the long post!