many folks notice that ozone at first improves skimmate performance... then later seems to reduce it. True indeed that at some point, especially in low bioload systems, the ozone and skimmer sort of "compete" for organics. But thats not a bad thing! Why should we care which gets what portion of the organic load first so long as they are processed soon and thoroghly!
Skimmers + ozone are good, my friend.
Ozone is good when used properly.
Euro-reef has a quirky and misguided perspective on ozone use IMO. Fabulous skimmers though. One of my fav brands.