Unfortunately I had to return the first one that was sent to me because it was scratched, but I quickly got another one good. I am quite surprised by the quality, its solid.
I put it on a Harley Benton PB-20 SBK Standard Series. 5 standard holes match like on the old bridge. But I had to drill two new holes, forward. The bridge is positioned differently than the old one, and when you put it on this bass, you will have to move the saddles quite far back, but luckily there is enough space for the first saddles at the ends to stay in the intended slots.
The sound impression is a much tighter bass range and a nicer, brighter high frequency range. Physically its much better to play than on the old one. Better attack and you will be more precise. I am very satisfied. Bass now looking better and much pricer.