laika
Well-known member
Back to most 40 footers with fin keels they manoeuvre pretty well. Within a week of practice under different conditions you will have most of it sorted. Just as important will be placement of fenders and making plans with your crew on coming along side. You can also talk to the marina staff and say you are inexperienced and they will give you a better birth if they can. I firmly say stick with the biggest boat you can afford so your wife will enjoy it.
The biggest boat on the OP's list was 14.4m. a 31' boat is forgiving if you get it wrong: It can be manually fended off or held against a pontoon or pushed away. Not so a 14.4m, probably with much higher freeboard. You already knew how to drive a boat when you got a 12m boat, as did I. My (long fin, no bowthruster, doesn't go back in a straight line) boat still took some getting used to. Isn't the bowthruster a red herring? Not knocking them, but surely it's best t learn not to rely on them? And it's not just the OP learning: his partner may be the only crew jumping off that 14.4m job t get the centre line on. Learning the basics in a 14.4m boat in a UK marina seems a recipe for disaster which really won't make the process enjoyable.