I've had excellent results with the feminiser. It was reccommended to me by a very sharp hydro store owner...I spray as a foliar spray the first day I go to 12/12 and then once more on the 10th day....had several hermies prior to using it and none since.

PS He also said that if the plants do develop balls further on into flowering that they won't be able to pollinate...can't remember why.....old