From what i can see that if its used during flower on a scrog i didnt make the buds fluffly(mabye fluffy is the wrong word but they arent as dank as usual) it always seemed to be the grows were i let the plant grow as normal and not lst. As i said i have seen growers use it all through flower and have no probs or in their own words never noticed anything unusual. maybe xxxxxhaze xxx is right maybe it wasnt the superthrive and just something else but the only thing i changed was the use of superthrive during flower.My good freind mobay uses it all through flower and loves it.I also found that the use of superthrive while germing gives me a higher female to male ratio every time .be safe the postman.