They probably have backache more on the Seacat unless they have fitted chairs on the bridge now! I travelled on the Seacat the first week it was in service (before they withdrew it to 'stabilise' it) and the Captain said half the deck crew were on the club with backache standing up all day on a ship that wasn't stable.
That was a bad trip. Puke coming out of my ears! Even my old man was sick and he's a turbine engineer on oil tankers!
VFE.