[krausewich]

Forward of the rubber seal to body contact. Fit the windshield to final position (45degrees) at center of glass. Then place the wiper bezels where you think they should be. As long as the bezels don't interfere with the rubber seal, you will be ok. It will likely be more than 1/2" from the rubber to the center of the drill hole though. They probably meant 1/2" to the rear of the bezel. Use the bezel angle to match your drill angle when you're ready.