Well, I wouldn't have believed it unless I saw it with my own eyes.
I ran the CPR on the 108g, fully stocked, as it was just going to be temporary, which is now, longer than expected....
I had to steal the skimmer for another tank, and rigged up my Euroreef on a table stand.
The Euroreef has been unable to skim ANYTHING.
Plus, I unplugged the CPR from one tank, threw it on the other one, where it promptly started skimming with no adjusting whatsoever.