Whats the real difference between a saddle designed for trail mountain biking and one for, say, cross-country or road riding? Is it purely a matter of personal preference, or are there specific design features that make a saddle more suitable for the demands of trail riding? Ive noticed that some saddles have a more pronounced nose or a cutout section, while others are more minimalist - whats the thinking behind these design choices? Do the benefits of a trail-specific saddle outweigh the potential drawbacks, such as added weight or reduced comfort on longer, smoother sections of trail? Are there any emerging trends or innovations in saddle design that are specifically addressing the needs of trail mountain bikers?