Has anybody cut out the stamped fan guards? I have 4 Panaflo L1A's in mine and it's not real loud but I was wondering if I cut out the stamped fan guards, how much quieter would it make it since it would reduce the turbulance. If someone has done this, I'd like to know your opinion on how much quieter it was before and after. I don't want to cut mine out if the difference isn't noticeable.