Not that this answers the orignal question, but... I don't think it's been mentioned, so let me state the obvious:

Whatever you do, rewind exposed film *fully*. *Don't* leave out the film leader. Just don't.

Leaving the leader out might work when you're out and about shooting landscapes, but under pressure it will go wrong. You will put the exposed film in the wrong box, pocket, or whatever, and end up exposing it again.