Ballhead Tripod Question?

I just got a new Manfrotto ballhead tripod (head #496RD2). It has a small knob (friction) and a large knob (lock). This may sound simple (this is my first ballhead) but which is the best way to adjust the head - which knob when? Thanks.

Loosen both completely. Mount camera/lens that you are planning on using and start tightening the friction knob, until the camera/lens, with hands off, does not drop. Try different positions, pointing straight away, slightly down, etc. Once you get this equilibrium, make sure that you can still adjust the camera/lens on the head by just grabbing the camera/lens and moving it. If too tight, back off the friction control just a tiny touch. Once adjusted, leave the friction control alone and use the main knob to loosen/tighten downt he head.

The friction control is to prevent the camera from dropping if you happen to take you hand off the camera with the main knob loose. With short lenses this is not an issue but you wouldn't want a long lens to swing down and whack the tripod.

Thanks for the quick reply. I've always used the heads with three handles that are self-explanatory. I got this because it was lighter and more compact for when I go outside.