yeah man, the fan leaves are the first to start yellowing later in flowering, thats a good sign. tug it lightly, if its ready to come off it will, if its still in their good, leave it a lil longer. alot more will start lellowing closer to harvest. and i personally like organic better for taste and overall appearance. better cure, flavor, and high i think, but like rock said, i got a belly button too!...lol