I am planning on taking the CSWP test at SWW this coming weekend.  I am working through the practice exam and can't seem to figure out what I am doing wrong.  On the first question, I was off .01 mm.  This put question 2 .01 mm off, but question 3 I hit perfectly.  How can that be?  I have looked over my model over and over and can't seem to figure out why I am off.  How many decimal places do they hold you to on the exam?  Also, I felt like 30 mins is not a lot of time to complete this.  Is the real test really that pressed for time?  Any help is a appreciated.