Wow... yes that is exactly what i mean. It creates soil layers. And as for your harvest try harvesting in thirds. Get a magnifing glass and look at your top third of bud when it turns white then starts a little amber cut the top 1/3 off. Then give it a week and the middle buds (having all this new air and light) will grow bigger. Repeat the magnifing glass trick and cut the middle and then repeat whole process on the lower 1/3. It's really the most efficent way to harvest. Pull the buds when they are ripe and most potent.