AC72 USA 17 has 4 pedestals in cockpits in each hull.
USA 17 ergonomics – grinding stations
USA 17 of Oracle Team USA has tiller steering (replaced later by wheel) and 4 grinding stations in each hull.
Grinding pedestals are in cockpits, to reduce windage. The cockpits turned out to be a very safe place to be when USA 17 capsized on October 16, 2012. It was only the eighth day she had sailed. AC72 design includes layout of crew positions for grinding and wing and sail trimming.