i have no idea how it would do outdoors. i'd like to know too. but lowrider doesn't need 12/12 at all, it can flower on 27/7. so outdoors, it gets real sunlight and more air, but has night time, indoors longer light. i really don't know, i would think it would do better outdoors other than the fact that since it is so low the bottom will mold easily in high humidity
turbo- i don't think its possible for lowrider to flower any earlier, the plant has to have atleast a few nodes to flower, and as soon as it has them lowrider kicks off with flowering
hope that helped