PUP, based on your first post I guess that you are still at the stage of being b*ggered around by experts.
Once you get passed the OCU the amateurs take over. By that I mean the schools and OCUs have been b*ggering people about for longer. On the sqns it is often their first time.
On the sqn you will take a lot of responsibility for your own actions (remember I said b*ggered around by amateurs of which you will be but one).
Another difference is that in the training system any sortie lost is a sortie that will be reprogrammed again and again. On a sqn any sortie lost will never be flown again. This means having taken responsibility for the sortie planning you will be keen to get out and fly it. You might be able to pull it out of the bag another day but don't bank on it.