Hi MosesL,
I noticed this a while back when I had my AP RO DT 26120 and had asked AP about this when I visited LeBrassus back in 2008. They confirmed that the power reserve indicator doesn't go to the absolute full position on the subdial scale. It goes somewhere in middle of the solid white area of the scale which indicates full wind. I was able to get a little over 40 hours so it fits within the specs.
Which color dial do you have? Any pics of where your power reserve indicator displays on your watch?
Here's a few pics:
Regards,
ED-209