Very jealous Nic you will have an awesome time.
Not heard of that issue Crafty but nothing I'm sure heaps of people have. If you don't get any advice maybe try posting a general question on bh. Keep us posted cause we all might have the same problem sometime.
I just tried CIO with Will. He will only sleep on me ( or anyone for that matter) or in his swing. Will also sleep in a bouncer at the gym crèche and in the pram when we are out but never in his cot. He went for over an hour and a half. I just kept going in to reassure him and in the end had to change him bum and gave him some boob to rehydrate. He is down now but not holding my breath for it to be very long. How long has anyone's bub gone for before giving in? It's heartbreaking but I really think its needed ( can't hold them forever right?).