As the MyRacehorse syndicate continued to grow, the team there kept hearing what became a familiar refrain from some of its many partners. They wanted something more. While the microshare concept proved to be innovative and popular, there are some limitations when you might own only a tiny fraction of a horse. With that in mind, last fall, MyRacehorse created a spinoff business, launching Edge Racing. Edge is more along the lines of traditional partnerships, which may include about a dozen owners instead of several hundred or even a thousand....