Ahhhh...I see the problem here. Xaoc seems to use that higher voltage figure for pitch because they're anticipating people using offset generators. For example, let's say you add an octave controller such as ALM's Beast's Chalkboard. What that is is a dual DC offset source with an internal precision adder, and each time you change octaves on the device downstream from it, you're changing the offset by 1V values per octave. So if you were at the top end of your keyboard controller and you still wanted to go up another octave, the Odessa will be able to make sense of that.