Has anyone ever seen any pictures of Borneman's tank anywhere? If you have, could you post a link so I can see it.
I run a skimmer 24/7 and a Ca reactor 24/7 too. I do agree that with some corals, poor skimmer is better than good skimming. Maybe even skimmerless is best for them. However, most, if not all, are soft corals and some LPS. I think the idea of overskimming is unrealistic to most of us. Can you over skimm a tank? Sure, connect the RK2 mammoth unit at the National Aquarium in Baltimore to a 20g tank and you will over skimm it. Most of us don't have that kind of power to water volume ratio, so I say we can't skim snough. I keep SPS corals only, so that is even more of a statement.
As far as DT, I would only use it if I had corals that would benefit from it. Are you sure what you ahve does benefit from it? If you have enough fish in your tank, you are probably already feeding your corals more than you'll ever know.