my thoughts were if you make the faces that mate together(like the Ritchey) and make those thicker so they can be milled out so they can be keyed similar to S&S but not as many or as complex. Then use the outer clamp to keep things tight. It might work and could be simple to make except the clamp might be a pain. I still haven't done the CAD design yet or I would post a pic of the concept. I wonder how Ritchey makes it work because they sell the breakaway in several models including a tandem which is going to have a lot more weight and torque on it. According to my research Sand S's patent for their connectors has expired so technically if someone wanted to start making them for the rest of us they could. Any takers? It is a proven design just not available to us mere mortals who like to build for ourselves.