Less popcorn, absolutely! Try none. My yields suck so far. I have been very limited in height, and I wasn't too sure how to fill up my space (I'm still pulling several ounces every harvest, but I should be pulling lbs, or at least 1lb. I've figured it out now. This run and the next are going to be great. I'm only running 600w right now, so yield given the wattage will be excellent. Also stop by my new thread I opened up for my tent! That project has hit the ground running! I expect so smash my yield records with it.