ManxLadybird, my warmest congratulations on an excellent piece of flying. Whilst the cause of the double engine failure is a mystery still, the description you provided of your descent and pre-ditching drills was quite outstanding. Were you taught all those things you described, or was it instinct? Either way, that was a 'copybook' ditching.
I'm sending you a PM as I think that your account needs a wider audience - many of us have already learned a lot from your post and I thank you for that!
Congratulations again; enjoy a relaxing Christmas!