Excerpt: When I ordered my Manfrotto 190XPROB tripod, I also purchased the basic 484RC2 Ball Head and the 804RC2 Pan & Tilt Head. They were both sturdy and easy to use, but I found that I spent too much time fiddling with them to get the angles right.
Excerpt: I had the Manfrotto Grip Action Ball Head for a couple of years and finally bought the second QR assembly. Great design to allow two QR positions for it; makes its use very flexible. No lost time (or shots) when switching from one position to the other.
Pros: Easy To Use, Fits Well, Improves Tripod Function, Solid/Sturdy
Excerpt: The addition of the Action Ball Grip transformed the grip from a vertical to a horizontal grip which gives you two choices on you mount, which I think should have been offered as a standard option.