Every golfer wants to hit booming drives, but I'll take consistency over power any day. If you're hitting the ball consistently well, you're finding good positions and making your next shot easier. My advice to 100-shooters is to improve your fundamentals, especially posture and alignment, because that'll help you make solid contact. There's no excuse for not having a good setup.
Stay in your angles
Notice in the inset photo that my back is straight, my upper body is tilted forward from my hips, and my knees are slightly bent. I feel balanced and athletic. This posture allows me to make a full, free turn on the backswing and forward swing. To hit consistent shots, you must retain your posture throughout the swing (main photo). If you pull up or dip before impact, you won't make good contact.