First, the screw which holds the Sativkopf on the center column was completely worn out. Completely incomprehensible why they made this screw aluminum. Furthermore, the length of the thread which holds the tripod head is about 2.5 mm just not aussreichend. Actually completely crazy his 2000 euros camera equipment a 2.5 mmm Alu "thread" entrusting.
The second incorrect screw is the locking of the center column. Here the screw has completely disappeared over a length of 10mm. The center column can therefore no longer notice. Again the question, why not draws such important links from quality stainless steel.
Will definitely return the stand and ask for my money back, or exchange it for a Manfrotto tripod.