So 50 views and nobody has any opinions / advice or anything? Lot of talk about the Bottlehead community but no help?
It might be that we don't understand exactly what measurement has initiated your concern. The best way to induce someone to help is if you post the number for a terminal listed in the manual, as well as the number you measure at that terminal, so that we don't have to go back and forth from the post to our copy of the manual to determine this. I am on my way in to the office and will take a closer look at this when I get in.
If the case is that you feel some values are on the low side, have you checked the voltage of your batteries?