I used to ride a Selle Italia Super Turbo with no problems. When I started riding my Ciocc again after a 17-year hiatus I noticed that my "male part" was going numb after 20 minutes in the saddle. Same bike, same set-up/riding position as when I rode years before, so the only thing different was . . . me. I exercised to strengthen my core thinking maybe that would help, but still experienced numbness. Maybe 55 year-olds are more prone to nerve compression problems - I don't know.

I switched to a Selle SMP and solved the chronic numbness problem. End of story.