What exactly makes the All-City Cosmic Stallion an ideal candidate for personalized gravel builds, and are there any specific design elements or features that set it apart from other gravel frames on the market in terms of versatility and customization potential? Some argue that the frames relatively traditional geometry and straightforward design make it a blank slate for builders, while others claim that its lack of cutting-edge features and technology hold it back from being a truly top-tier option. Is the Cosmic Stallions strength in its simplicity, or is it simply a relic of a bygone era in gravel bike design?