Leiches rattle, otherwise Top Product

I use this Proudkt with a Macbook Pro and the occasional tap, you can do this without additional exterene keyboard / mouse use (at least at the lowest level v. Total 6).
It's much more pleasant to work so.

At the bottom of the product is initially a small hub attached, but does not help much in my opinion, but makes the whole thing rather shaky. This I have removed over the screw and the rack no longer wobbles to the left and right while typing.