It just keeps the bottom polls from pulling in but the walls still do. They should of done a 3 way on the middle bottom like they did on the top of the 8x4. I have 8" exhaust also and yeah it does really pull the walls at time. AC Infinity makes a High CFM kit, I would think I would need 4 kits though. 2 kits for left side and 2 kits for right side, rather then putting 1 kit on each side but maybe I'm over thinking it. I was thinking of somehow making my own but haven't gotten there yet.
I just cleaned my humidifier and even with using ro water i get a red gunk that builds up all over. Ever gotten this?
I have my hum set up to my ac infinity controller set to a certain vpd so it tracks depending on temp. Pretty neat I just started playing around with it