Clear recommendation for the sigma 1 Ball Head

If you're looking for a light travel or stable flex tripod a small head, can not expect the suppleness of a heavy, expensive spherical head and renounce separate panoramic rotation will be well served.
(Driving as a makeshift for panoramic landscapes which hopefully turnable center column all the way down and turn the center column)

The load is ok, the manufacturer's instructions are always to be treated with caution: at central load even a small head holds several kilos, critical stress is in the vertical position with longer lenses!

I have tested the head with my old Minolta with engine part and a 4 / 70-210 telephoto, a fairly sweeping combination with about 1.7 kg when friction screw and clamping levers are fully tightened holds the head in the portrait still, however, see I here the breaking point.
With a lighter SLR and middle (amateur) Zoom the head should have no problems.