I have been trying to research this for a while, but nobody seems to ever mention it. I have grown about 6 different times from begining to end and I keep having this problem...The plants look great, produce wonderfull looking buds that are full of what appears to be resin glands and then once dryed I smoke it and it is no good! I have two 400w HPS lights that I run in combination with 4 65w compact flouros (two with each hps). I use very good quality soil and seem to fertilize the plants very well(no yellowing or spots or anything). I also keep a fan on the plants at all times when they are big enough to handle the breeze...I keep 6 plants under each combination of lights about 1'3" away. I also have an intake fan bringing air from outside and an outtake fan pumping it out. The temp in my room is in the upper 60's in the dark and in the upper 70's in the light. I check the ph of all the plants regularly and its about 6.75. The humidity in my room is about 50%. The seeds that I purchased were purchased in amsterdam when I went over there and they were from green house seeds and dr atomic. I am about to give up since I have spent a lot of money and time with no success, so this is my last resort...Please help!!!!!!!!!!!!!!