Theres such a big variety of saddles, the chance of you getting it right with a stock one is pretty slim. Butts are way too different from each other. A hard one doesnt mean its uncomfortable. On the contrary. Width and length might be key factors. And adjustments like saddle angle (should be pretty straight) and amount of drop down to the bar. And height of the saddle. Finding a comfort seat is very much about testing, testing & testing again. Once you get your numbers right, you know it...or your butt will.