funny, i used to be a skimmer snob. My skimmer has been running at about 10% efficiency at best for the last 6 months. Im not cleaning it for two reason, one, i don't see the need now, and two, im lazy. I can tell zero difference in my water quality, my SPS dominate tank seems as good, if not better, then my overskiming past. I am setting up a 240 with a 1000+ gallon total system volume. I am thinking that my new 120 gallon fuge will take care of my nutrient export needs. After 15 years in this hobby, this is the very first time i can say that i don't need a skimmer.
It also might help that i am running 1000lbs of liverock in a basement sump and a 75 gallon fuge full of cheato, with a remote 8" deep sandbed with 2000 square inches of surface area..