In my continual search for excellent super lightweight gear for LF backpacking, I just picked up the Velbon magnesium ball head to replace my small Kaiser. It's half the weight (0.3 vs 0.6 pounds) and easier to use with a lever instead of a knurled knob. I hope it holds up well over time. BTW I am using a Wista DX and its all mounted on a Bogen 3001 legset (scheduled to be replaced by the Gitzo 1127 at some point.) And its off to Southern Utah in two weeks!