I managed to have a chat with lot of the lads from 27 who were on a training exercise the other day and got some helpful info off of them. Also, I spoke to an Aeromed who has toured with 28 and got his side of the story. After chatting to them and other people around Halton, Rotary seems the one for me, but I'll have to wait and see what Santa brings.
Thanks to the people who have PM'd me, you've all helped. I'm going to grab any opportunity I can to speak to people when I finally go to Cranwell, as that's obviously the way to go about it.