I am relatively new to cycling and I have watched with interest other threads about saddle preferences and brands. I have a Trek 7500 Hybred with a Bontrager saddle that seems OK for now. Although I have not made any rides beyond 20 miles yet, I intend to do some 100+ mile trips later. I have noted that many people have a stong preferences to leather saddles such as the Brooks while others like saddles with other features. It appears to me that as I build up milage, I might prefer a better saddle but I don't have a clue about what features are highly desirable. Can you educate me about the pros/cons of different saddle features for someone who is interested in confort over a distance while riding a hybred bike (no road bars)? I know a saddle can be a personal preference but....... Leather vs other? Shape? Hard vs padded? Cutouts? Break-in time? etc...etc...etc.