Anyone have any thoughts on which Trek bike would be a better ride for all around riding and occasional century or MS150 rides? I was thinking pilot 1.2 but then I saw that the 520 was designed for specific touring. Would that mean the 520 is more comfy but heavier, slower, etc.? I'm not looking to carry any heavy gear on my rides so I don't need to worry about racks and the like. ALso, would the portland or the cross bike be worthy options as well? I would like speed and comfort and the ability to hold up to the normal rough roads of everyday life. the Madone would be extreme overkill for me.