Adjust bar tilt to get optimal long ride comfort. Ignore reach. Reach is dependent on saddle position and stem length. Adjust saddle position to get the weight on your hands which you prefer, then adjust stem length to get reach you prefer. Those a slightly interconnected. I now have several stems in my spares box.

Set your hoods so that they are even with the ramps on your bars. Like this:



or google Images for "hoods ramps bars". Your brake levers should be about vertical.

Then adjust bar tilt so that the heel of your hand or your wrists rest on the ramps when you're going hard, like this:



or this:



Or see:
http://www.bikeforums.net/bicycle-me...bar-setup.html