So I have decided to change my entry choice from surface warfare to boats. Despite originally being very nervous about the prospect of being drafted into the submarine service during basic training the more I looked into it the more I realised that I would much prefer working in submarines than on the surface. Before I call up my AFCO however to confirm my change of heart I would be thankful if anyone could answer just a few small questions on the service for me. 1. Once you have been assigned to your first posting are you permanently assigned to that type of Boat. For instance if during my first posting I were to be sent on the Bombers is it likely I would spend the rest of my career on bombers with no chance of moving across to a fleet submarine. 2. Given the pressure change involved is the SETT not incredibly painful on the old ear drums and do quite a few burst ear drums happen during that part of training. Many thanks in advance.