As I said, Unique's interesting.... proclivities... have been the subject of discussion for nearly 100 years, and have been mentioned in most of the major trade publications various and multiple times.
And, as I noted, even Hercules addressed the issue in years past.
When the manufacturer says hey, we know it can be problematic out of volumetric measures, but its benefits outweigh its drawbacks, well, then you can only come to a single conclusion....
Those fool tool idiot manufacturers don't know what the hell they're talking about because Ed's never had a problem, and by God Ed is DA MAN!