If you're looking for bragging rights in the purist form, then a sub-X hour century should consist of a solo rider, non-stop, no pacelines on a given course; a flat Florida course, no wind being significantly different than a mountainous course. Most of us who do organized rides or club rides use riding time just to measure fitness since stops are either inevitable (regroups) or desired (rest stops). It's all good if you're riding. Race if you want real bragging rights: same day, same course against your peers.