I have has both version of the Edelkrone Foxus One, the current rev 2 is smoother, adjustable for wear to eliminate any backlash, and a nice smooth action. Downside, it is somewhat heavy (not an issue on a tripod) and only connects to one rod, which can allow some slip, depending on the rods being used. Works best with metal rods, nice and secure then. I like the rear facing disk, and it comes with both black and a white write in disk. However, the new model does not reverse direction for Nikon lenses, as the previous version did.
Cheers
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