First let me say, I'm not a Star Wars expert, and if this has been discussed previously, then feel free to delete this thread. But ANH was on TV tonight and I came in during the climactic battle. As the X-Wings are attempting to hit the port, they keep showing the graphic with the time until the Death Star has a shot on the rebel base. When they finally come into range, the order is given to charge the weapon, which takes a little time to activate, therefore giving Luke time to make the critical shot. Is there a reason that they didn't start pre-charging the weapon when they were close to range? Just curious.