Diving is, at heart, about control. Only when you are in control of your movement, air, and level of confidence, you can enjoy a great dive. One particularly important factor that influences your dive experience is how well you are able to manage your weight and control your buoyancy. When you are properly weighted, you will glide through the water naturally, like a marine creature. Furthermore, you will not spend your precious air fiddling with the BC valve controls to find a balance.
If you do find yourself in an emergency while diving, your life could depend on your ability to handle your weighting system. I sincerely hope you never have to face such a situation, but in diving, as in life, it is better to be prepared. Here’s the problem: most divers rely on weights for only one thing - to submerge. While most diving training courses teach divers how to remove weights in an emergency, it can be hard for a diver in trouble to recall one lesson dimly remembered from some long-ago classroom.