Why dont u just keep a mother plant in permanent veg stage and just clip 10 clones off it every month or so... then youre guaranteed 100% females and dont have to fuck around with seeds any more.... keep in mind that a clone from a 4 month old mother plant still has the genes of a 4 month old plant and you can induce it into flowering almost as soon (if you wanted to) as it roots and shows a few inches of growth... get like 10 little plants flowering at once if u want... give some clones away... sell em or whatever... but keeping a mother plant is the only way to roll.