I take them out of the cloner when the roots are about 2" (longer gave me issues, shorter is fine) and then I grab a solo cup filled 2/3 with my soil. I jam my finger in to the knuckle, dust some mychorizae into the hole then gently lower the clone into the hole. I then gently fill in the rest of the cup with soil and finally I water it in till water runs out the bottom. That settles the soil in/on/around the roots I believe. The cup goes under the floro and doesn't get any more water for usually a week or so (very dry looking).