If you are a high handicap player though I think you have to be very willing to do things entirely different. There was an extremely good junior player in our state that would hit the ball 250 yards with his driver during tournaments. Much to our dismay, he won a long drive contest bashing it over 300 yards. For longer courses he may have tried to bash it, but he knew his game, and knew the 6300 yard courses we were playing in our teens did not require the long ball. If you work on a better, more efficient golf swing you may gain 10 yards, you may lose 20 yards, without video of your swing it is impossible to tell, but consistency has to be your #1 priority. Corey Pavin is a tour player at 260 yards off the tee. If you do happen to hit it quite a bit shorter but much more accurately you may learn to like it! Sounds crazy, but I've taken a great deal of satisfaction in kicking someone's butt that hits it 310 while I am hitting it 250-260. As a 4 handicap I feel it would help to gain 20-30 yards to take advantage of the par 5's. The par 5's at my club from the back tee's require 270-280 yards off the tee, or you have to lay up around 230 on 3 of the par 5's. It just so happens these changes will almost certainly produce more accuracy. I guess the short answer would be you just have to learn your game and THE game.
Matt