I gotta say as far as SOG goes, most of you couldn't be more wrong, and yes it is used heavily in the commercial industry. Guessing most of you aren't privy to too many professional rooms, seems...
Also for the record THG you do know someone who only takes plants 14 to 21 days in veg from seed or clone as that would be yours truly.
My test thread currently going uses this very method and is showing what can be done and will be start to finish in 13 total weeks on an 11 week flower time strain.
You guys that say you got more, perhaps did but you also added at least 4 to 6 weeks total in your time increasing your electric, nutrients, cooling and everything else overhead cost. Bottom line is you may produce the same amount of weight, but you will certainly not produce it as cheap and I'll be half way through my next crop when your cutting down your first harvest.
If someone can pull a LB in six square feet in 13 weeks growing 2 or three plants, I am all eyes and ears.
IMO, if you grow more than 10 plants, and you're not doing a SOG, you're doing it all wrong.