I was eyeing the XS200 as well. I want to upgrade my current skimmer, a Berlin from Red Sea, because it is not performing well. I however was thinking of buying the PM with the 8" chamber which is rated at 200gal, I think. I am getting little skimmate(about 1/6th of cup) every week but having to constantly adjust it. I even modified it by adding a ball valve in order to raise or lower the water level. I had to do this because after cleaning, it would foam constantly and after 1 day it would stop and nothing would flow over onto the cup. I will try and do one more modification but if nothing works I'm just going to get a new one.
I was initially going to get the Aqua Euro, but am now leaning towards the Precision Marine 200 or the XS200. What do you guys suggest? I have a 75g with a 30 gal sump, 5 smallish fish and 2 small frags(sps). I will eventually stock it with lots of coral. a little of everything sps, lps...