If you have roots, they need to be under soil line. Leaveing them above the soil is wasted energy. A cuttings has been removed from its energy source, so use all the energy that the cutting has to give. It's like you filled your car with gas and left it running in the driveway all day. Just wasteing energy. The only thing different is, you can fill the car back up, but you can't put the energy back in the cutting. By even showing pictures of the likes, others will think this is the proper way to plant. Not trying to get anyone pissed at me, just don't want people learning the wrong way.
luke