The starboard side of the windscreen. The starboard door ran me out of saber saw blades. I ended up finishing the last 10" or so with the hand-held hacksaw blade. What a pain in the butt. But it was completed and the opening cleaned up with abrasive tools. This whole operation required about 3 1/2 hours. It is amazing how much the removal of that 1" - 1.5" rim has changed the whole character of the view in and out of the cockpit.