The problem with the Taurus & Brison is not the weight. They really are about the same as the DA/ZDZ/MVVS with the requires standoffs. The problem is with performance. As far as I know there is no headder available for the Sachs cylinders. That means you don't have the option of using a tuned pipe or cannister system, leaving the DA/ZDZ/MVVS quite a bit more powerfull than Taurus/Brison.