Wanted to make a point here to everyone.
The best bear manufacture in the world always suggest not letting the first part of the beer you get touching the glass.
Stella actually calls this step 2 of the pouring ritual "The Sacrafice". I personally take the work of 600 Year Old Brewery.
Do not take my word for it go to
http://www.stella-artois.com/main.jsp and read about the pouring ritual under enjoying.
The problem is not with the unit it is with the instructions on pouring.