New models have been analyzed and defined by Tecno Diamant which you can find here.
Fickert with alternating blocks: latest generation diamond tools
[…] The swiveling movement of the fickert with 3 + 2 blocks allows you to perfectly follow the surface irregularities typical of lapped materials, ensuring an excellent modeling effect, excellent sharpness, high brilliance and also a long life. They are also flexible because they can be customized according to the different needs of the ceramic company, by calibrating the diamond compound ad hoc, giving the level of rigidity or softness of the rubber and customizing the design of the arrangement of the blocks. […]