It's not about the CO2 intake so much as it's about the photosynthesis. You cant make bricks without cement! (or whatever the hell they make bricks out of!!) And like I said, I stand corrected. That is one hell of a lot more than my buddy got. I'd just like to see a side by side done on a level playing field, same strain, same nutes & media, same lights by the same grower, then compare yields.
MY whole point with that throwing out the whole "chop the fans" thing is that newbies almost never read the entire post. They'll see pics of large buds, and "chop the fans". It can cause more harm than good for someone with little to no experience growing.