I'm probably the last guy you want to listen to, since I've only been playing for five months, but I read a post from a guy that I thought had some really good advice. He said when he's at the range, he imagines the course he's playing. For example, If the first hole is 450 yards with a straight fairway, he'll drive the ball towards the farthest flag on the range, estimate his drive distance, and calculate the remaining distance to his 450 yard hole. For example, the first drive on the range goes 250, so there's another 200 yards to his imaginary hole. He'll then pull out his 3-wood and hit towards a flag on the range that is around 200 yards away. Let's say he hits that 190 but 30 yards to the left. He's got maybe a 40 yard shot left, so he take his PW and aims for the closest flag or yard marker on the range. So this guy doesn't hit 20 consecutive times with the same club. He rotates from one club to another, just as you would on the course. Obviously, this slows way down the time it takes to go through a bucket, but sounds like as good a way to simulate on the range what you do on the course.