Yes, it fux up the THC production to use excessive co2 during budding, and it is for much the same reason that you use red or blue....---There are correct times to do things when vegging or flowering, or then again you could do worse with your timing and efforts.
Now, what is really gonna tweak your noodle is understanding how it could be possible that chopping the plant down and sticking it in a bag with some dry ice would make it more potent........or, does it?
You should consider that co2 can increase growth by, well........I have grown wheat 6 inches in one night using co2 enhancement....and consequently you will have a bigger root ball with a bigger plant with MUCH BIGGER BUDS. I would recommend growing without the co2 for a couple weeks or so for any plant especially that which has nutritional value. In fact, the plant, any plant, is likely deficient if you grow with co2 and don't give the plant opportunity to use the sugars it produces to build up the plant and other such groovy stuff.....leading to dumb stuff like week nutritional value and flimsy stalks. If you think i am kidding, just look at the nutritional value of corn and compare it with corn from 100 years ago. Thats right. You are basically eating nutritionally sub standard corn....which has become the standard. Apply this concept to your growing.
HAVING A BIGGER ROOT BALL, for soil growers, MEANS BIGGER YIELDS. Thus......when you are done budding and collecting your yield.....KEEP THE PLANT!!! send it back to the minors and let it vegetate 'till you are satisfied with the height and get a bigger pot for the soil and you are in like Capone while you GROW A SECOND, AND BETTER, HARVEST WITH THE SAME PLANT and will likely offer a much better yield. Go gangster on them bitches.
You should also consider that if the plant is growing up very quickly that MOST OF THE WORK GOES INTO VEG PRODUCTION INSTEAD OF BUD PRODUCTION so don't use the co2 when budding. duh. One could argue that if vegging techniques/processes takes away the food for the buds, then at any time during the flowering stage that you concentrate resources to grow the plant, you will take away food from the bud....sorta like like growing up instead of out. Ask your self if yo want the plant to spend more or less of it's time making buds??
This could all be bullshit. Who knows, but maybe the c02 is actually inhibiting the uptake of an additional and important flowering nutrient in much the same way that a drug might not work if you are using something that blocks it.
I hope this helps and offers new ideas to you.
God bless America.