fourth grow huh? what did you grow before???.... If you invest in good genetics and you grow inside you should keep your mothers in vagetative state and take cuttings... The best technique in my opinion is sea of green... You want a indica dominate strain because they grow short and compact... I personally prefer Dutch passion seeds. They are reliable and thier strains are great... I grow super haze outdoors and it grows amzingly. White widow, blueberry are good choices. If you want a more sativa high them try flo. Its an extremely sativa high yet its 40% indica so it yeilds more and is alittle more compact.