My Gilles Berthoud Aspin leather saddle plus Thudbuster seatpost has saved my posterior. Though I weigh about 220 lbs., I ignore the recommended elastomer combination, which is meant for off-road jumping, and use two medium elastomers. I might even switch to one light and one medium next summer, as I have never bottomed out--of course, I unweight if I see a bad section of trail. In any case, I barely notice slight pavement separation and small root bumps now. Oh, I have Jones loop handlebars, so a pretty upright position more suitable for my senior body. 😉