well if you want to keep it legal and your allowed 6 plants in each stagethen thats 12 plants total, 6 in veg 6 in flower. like Thunder mentioned it might be a better idea to do sets of 3's and eventually you will have your 6 in flower and 6 in veg and you can harvest 3 at a time. this would break up your vegatative cycle so that you can do 4 weeks veg>8 weeks flower so you would have something like this
so you could do something like this....
week 1: germinate 8 seeds, pick 6 strongest to start.
Week 2: vegatative growth, watch for best pheno
week 3: vagatative still watching for best pheno.
week 4: pick best pheno plants of each strain and cut clones, start flowering.
week 5: dead week waiting for flowering to kick in
week 6: clones rooted start getting them into the DWC, week 1 flower
week 7: watch em grow. week 2 flower week 1 veg for clones, the clones have now grown roots into medium but not yet into the water, still not much vegatative growth.
week 8: watch em grow. week 3 flower, week 2 veg on clones. clones are now starting to grow roots out of the net pot
week 9: week 4 flower, week 3 veg roots are starting to hit the rez, clones will now start growing vegatativly
week 10: watch em grow. week 5 flower, week 4 veg
week 11: wacth everything grow...wow its growing fast now and them buds are really starting to pack on there and smell ooooooh so good. week 6 flower week 5 veg
week 12: man these clones are growing crazy, the buds are taking a nice form cant wait to smoke some of this!! week 7 flower, week 6 veg
week 13: time to decide if its harvest time or you should go another week. take clones off plants in veg and get them started and decide to give em 1 more week in flower week8 flower, 7 veg
week 14: the time has come, chop them girls down and put the vegging clones into flower, work on getting them clones established again you have 8 weeks so no hurry here.
rinse and repeat. obviously this isnt a set in stone schedule but i think its a good "idea" to think about. you will have 8 -9 weeks between harvests which will give you planty of time to get your next run of clones up and going and if for some reason by week one of flower the clones didnt make it you have time to take some more. and still be able to stay on your schedule. if you go the 4 week route and 3 plants to a time theres a bit less room for error as you dont want to take cuts from a flowering mother and anything behind it might be too small to take cuts from.
i dunno man just trying to brainstorm here and come up with some helpfull ideas.
there ar ehundreds of ways to go with growing just need to find what right for you. if you take clones off mother plants the day they go into flower this gives you roughly 8-9 weeks to get them rooted (2 weeks) get them established into the DWC system (another 2 weeks) and veg them for 4-5 weeks. once the roots hit that water is game over...them plants will be growing 1-3 inches a day if your enviorment is right and you have the DWC dialed in to a T
lemme know if im helping or making it more confusing lol