PerroneFord:Do not use your hands. Why? Because if you ever want to learn to dive with a light, a reel, a camera, or anything else, you're hands will be busy doing other things. Also, when sculling with your hands, you are generally directing water downwards, which could increase silt if you are close to the bottom. I just work on holding my nands together when I dive. Or if I have the light, keeping one hand at my waist, the other in front of me with the light.
Actually, taking a camera down with you is an excellent way to train yourself not to use your hands. Trying to get into and hold the perfect position to take a photo while your hands are busy with the camera will soon teach you fine control with your breathing/foot movements.