How does everybody hold there picks? Do you really hold it tight for screaming solos, or do you hold it lightly. Or does the pressure or tension on the pick depend on the type of music or song being played?

I have been told I am a heavy player. That could be because I held on to my pick with a very strong grip. Over the months I have let up on the pressure and now strum with less fret buzz. Now I am finding that the pick turns between my fingers and I end up playing with the side of the pick or at times I end up dropping it on the floor.