well with one seed its 50/50 sexing chance. but force you plants to sex when there about 2 weeks into veg stage for 12/12 untill it starts to preflower (showing the sex) then you can switch back to 18/6 or 24/0 with your lights. now as far as the compost and sog go... i can't help you there really because i haven't tryed the SOG method yet.. but i will soon enough so ill leave this one to the pros :thumbsup: :smokin: