Reading this thread inspired me to try a more aggressive position on my ride last night. I tried lowering my torso with a straight back, and I think the straight back helped reduce neck fatigue.
One thing I noticed, though, was that when I kept my back straight and lowered my profile, it felt like a lot more weight was being put on my hands and arms than I was used to. How much weight is normal to be felt in the arms in this position?
Does this mean I need to move my seat back? Or maybe that's just how it's supposed to feel and I need to HTFU?