Rhizome that is some thorough learned you making me. Your efforts are so very appreciated. I am going to be taking my second stab at setting up a room in the upcoming months and will use this information, or at least what i understood(doh).
I was trying to cool 6 600W with a 10 inch canmax. With ducting that looked like a yankee stadium pretzel. not sure it was really doing the job (another doh)