LOL--the trouble is that most of us do not get that or that would be the way we would be growing. All of us that have grown for a while have tried most of those kind of things over the years, trying to improve yield.
In actual practice, what I have discovered is that a 4-6 week veg will give me 2-3 times more yield than when I put anything right into 12/12. So with only 12-14 weeks total, I can pull 200 to 300 percent more with only a 50% increase in total grow time.
How big is your space and how many lumens are you running? Your yield is going to be determined by this also. To end up with a lb, you are most likely going to need to be running at least a 600W--that is about .75 grams per watt, which is quite good and requires a pretty dialed in space. If you expect an lb and a half or better, you are probably going to need a 1000W to pull that.