I agree with abrownmn.. this kinda sounds lazy. I don't mean that to offend, so please don't take it that way, but the way I used to sog, was start the seeds in veg for about 4 or 5 internodes, then clone the tops. As soon as those are rooted, the "mothers/seedlings" go into flower. When the sex shows, I pull the male(s), then put the clones into flower as well.. minus any males. 1 or 2 weeks later, I take lower shoots from the clones for the next stage clones. This cycle continues until the mothers/seedlings are harvested, then continues again with more room for the clones. This crops out every 2 or 3 weeks, depending on strain and original flowering time dived by however many stages. 18+ grams per 24" cola/plant under a 250hps, in an 18" x 36" cab. Doing it this way, you eliminate the large veg area.. clones go into flower as soon as they've rooted. Same as doing 12-12 from seed, but the plant's more physically mature enough to produce the best that it can. Better than a seed from 12-12 could.
But, just my opinion...
Cheers