Gives the impression that a screen of 25 kg weighs only two or three.
The factory clamp is robust, and it is easy to direct a big screen by the leverage it provides. But it quickly becomes ominous by the effort we have to do on the screen. Having lubricated the hinges, it has softened the movement but a certain level drift is slid to the right screen.
This is where the hinge locking screws would have been welcome because unlike many similar supports, there is no way to tighten to avoid sudden movements. This requires a level mounting without error. The slightest difference in height resulting in a drift angle due the day the tightening begin to let go.
It is most regrettable that we can not set the device to tilt the screen left or right. This is not a luxury, as soon as the screen instead of non-parallel to the wall, this lack is felt.