I spent a couple of weeks trying to get the saddle height adjusted "just right". Ride for a few days, raise the saddle a few centimeters, repeat. I have the saddle just high enough so that at 6:00 in the pedal stroke my leg is slightly bent, and low enough so that I don't experience any "rocking" of my hips while I pedal. As far as the saddle goes, it's practically an a** hatchet. I ride a Trek 7100, and I had to replace the wide, squishy stock saddle w/ a body geometry saddle just barely wider than the bones in my rear end.

Y'all gotta remember that I ride in Houston, where 90 degree days are the norm.