1. After attaching, the stand wobbles a little, even with allen screw and tightening bolt. 2. Our product was defective in that the tightening screw moulding was flawed, the bolt showed through. The finish on the product, black powder coating included contamination of dust and grit, not acceptable and quality control should be improved. 3. It is being returned for replacement in the hope we get a better example of the product.