The Solution To Numbness Problems
I changed my original saddle (beak) because I had severe numbness on outings of more than 100km, accentuated in aero mode on the extenders (stronger support towards the front). No more worries with this saddle, whatever the positions and duration. It takes a little time at first to get used to the different supports (on the bones), but you get used to it and it's much better. Just look at the number of ISM saddles in triathlon bike parks to be convinced.
Pros: comfortable, high quality