The night before you harvest take a knife and stab the trunk about two inches above the soil. shove the knife right through it and twist it to the right or left to make a hole, than take a piece of wood or plastic and remove the knife and shove it in there. Let it sit for 24 hours in the dark, it is like us with addrenalyn it shoots up into the buds like it is trying to survive. Bottom line is you have to have good dna to get a high thc content but I did this and the stuff winds up killer. With that said I only buy very high content seeds to start with so it is going to be good anyway