>I guess it goes to to prove that you need to measure >everything and not go by spec sheets.
My wife complains I don't always read the doco. It's the engineer in me. I maintain that by reading the spec sheets you will only ever discover features that were intended - not the other nifty tricks & features they failed to document! That said, reading the manual is often useful for self assessment. Just like checking the answers in the back of your math textbook to assess how well you went!
Next I need to scurry off and check the floating DC on my D7k inputs. Love this forum for prodding my grey matter!