...because I just took it to the extreme. I was having a hard time getting enough drop on my TT bike, so I got a new stem... The result?
For something in the neighborhood of 8-9" of drop. -35 degree 110mm Dimension stem. Strange as it sounds, it's almost as comfortable as the old position, and because I didn't change leg/hip positioning, power didn't seem to drop when I rode it today.
OK OCPer's... Good enough for you?