But .... the indication of 6kg is not applicable. The tripod head was never really stable. When I have my Canon then placed with the great Russian ton, the course was not better. I barely tried inclinations. Another attempt to turn his head a little harder has been acknowledged so that the screw by turning.
2 windings are provided for the head. Even me as Büromensch is clear that 2 turns can not really keep in aluminum.
Conclusion, top tripod, only one screw was saved, so it is unwatchable.