I need a small, light head that can support 10-12 pounds for a special application. I need something that weighs no more than a few pounds, and the lighter the better. A flat base is preferable. Obviously something like this won't have the smoothness of a nice head like an O'Connor but I'm hoping to find something with adequate drag in the pan and tilt. First choice right now is the Manfrotto 501 but I'd like to find something smaller, lighter, and with better movement. Price isn't such a factor as size and weight. I know this is an unusual request, but any thoughts?