Sometimes, in venture capital, it pays to specialize. The latest indicator is a Kansas City, Mo.-based venture firm that’s focused on seed-stage startups that are based anywhere from “Park City to Kansas City.” According to an SEC filing, it just closed on $16.4 million in capital commitments. It’s the third fund for the outfit, Royal Street Ventures, which was founded several years ago by two Kansas City natives — Laura Brady and Jeffrey Stowell.