SO similar to M and F line Arca's design... but different to the cube and D4...
i'm still in love with my D4 !
https://www.cambo.com/en/studio-products/tripod-heads/pch-new-gearhead/
i'm still in love with my D4 !
https://www.cambo.com/en/studio-products/tripod-heads/pch-new-gearhead/