I have to say that I'm even more conservative then this. 100 miles is not a whole lot. You could go on a few short rides like 10-15 miles each and rack up 100 miles in no time. What I want is to go on rides where you are sitting on the saddle for hours on end. I need a few of those long rides under my belt, and in addition to that I want to see how it handles rough pavement as well (and at speed). If a saddle makes it through all that, only then do I feel like I can give it the thumbs up.