I worked at zbroz last summer and the new design was meant to look like a trophy truck style arm. It made the arm easier to make as less bends and copes had to be made to the ends of the tubing. They were able to be left square on the ends which made them easier to fit before final welding. A die was made which would allow laser cut plates to be bent into the shape of the boxed in structure. Different sets were made and installed on one of the zbroz own sleds which was then taken out and pounded on. No failures occurred with the prototypes, so the decision was made to go ahead with the build run. When I came back to Canada in August, all the individual parts were done and ready for assembly. I'm sorry there have been issues, but I know the zollingers will fix you up.