I'm looking for a new tripod head since my Giottos 3-way pan head mysteriously broke in half . My professor at school uses the Manfrotto 322RC2 pistol grip and I like the feel to that. Now I was looking at that pistol grip as well as the new updated version 324RC2 pistol grip, or going back to the 3-way pans. 460MG 3D. So does anyone have anything to say over pistol grip vs 3-way pan? If for pistol grip, which would be betterm the 322 or 324? I know the 324 is made of this special type of polymer, and the 322 is magnesium allow I believe, same as the 327RC2, but the 327 is a little more than i want to spend.