That is an interesting project. Sounds like it freed up a lot of airflow in the mid-tower case. What I wonder now is if the bottom fan makes a difference in the full tower cases? Both Cheetah and Puma's cases have a slot for the fan down there, I think 120mm - just in front of where the PSU goes, but I have never put one in, wonder if it would make a difference or if it would interfere with the air flow from big side fan?...hmmm...