Gitzo G1177M Magnesium Center Ball Head for Series 1 Tripods - Supports 8.8 lbs Reviews:
Fast, Easy to Use, Well Made
I use this on a monopod, a Gitzo aluminum 2341. It helps with angling the monopod the way I like, and giving some extra height to the monopod. I added a 1.75" Kirk clamp to make it an Arca release ball. With just a single control the ball is quick and easy to manipulate. The ball moves easily, but is not buttery smooth like Kirk and RRS ball heads. For the price (especially with the current rebate) it is a bargain. I would use it on a tripod as well, but already have one on mine. It works well when used with an 80-400mm VR Nikon.