Aye that's the old boat.
I have been on the St Clair in similar conditions. Its not so bad going ABZ north but going south your still awake and sober by the time you clear the south of the island.
Those boys can really handle the boats though. One time the stabiliser hydraulics went tech that really was a wild ride.
Must admit a lot of the time when we flew up there you looked down at the sea and thought sod that. But then the boat crews we used to move about said that the would prefer to be on the boat than an aircraft in gales. The amount of swearing coming from the back when it was lumpy and you had to swing it round onto 33 was amusing especially when you dropped a wing over the hotel turning final. The only place they hated going to more was Vargar.