LEDBud,
If one reads the first two posts in their entirety, you will see the reasons side by side cannot be a proper comparison.
Also, you will see that preparing from early veg (not just flower), gains the best results.
I highly suggest also reading
Light Addict's Fluxing Central - Featuring The Original Flux Journal as this incorporates this method along with even more training than I started doing with this method.
To those suggesting "solar light panels from mother nature" I say bufaw! One must remember and think about this from another perspective. Lets try: Outdoors, the sun delivers more HIGHLY USABLE light than our indoor lights from top to bottom, of even 20 footers of the biggest bushiest plants. Secondly, in "nature", common soil has far fewer nutrients than our plants simply because we feed them excellent nutrients at all times. In nature, the nutrients are far less. So certainly some "storage value" can be obtained. But how many pot plants in nature, without man made nutrients added, could ever compete with the plant given nutrients by man? None I say.
Indoor light for all but the biggest commercial type growers is highly limited. The effectiveness of a 1k HPS is only good for about 3 ft. Think about that. Furthermore, indoors, because of so little usable light, those leaves do in fact shade a lot of usable light to the flowers. Once the food to the plant is solved, light becomes the most important thing to good flowers. Good flowers from top to bottom. The canopy will be the least affected by using this method. Simply because it gets the vast majority of light already. The gain is simply put, everything below the canopy being highly more usable flower rather than small tiny do nothing buds.
Proper preparation is always key to highly successful grows.