Perpetual grows basically double your yields, assuming your veg+germ+sprout time = flower time. With 6 plants, of mixed 8 week strains, I am harvesting a plant every 1-2 weeks. Every time a plant is ready to harvest it comes out of flower and there is one ready from veg to take its place; there are ALWAYS 6 plants in flower no matter what. Veg has to anticipate what is needed. Cloning is really handy here as you can clone any plant you move to flower, which will usually be ready to flower themselves around when their parent is harvested. From time to time you sprout a few seeds to get some new genetics in
Also methods like sog and scrog are good strategies for maximizing yield. Most of the better than 1g/w grows I see are scrog/sog.