I'm never comfy trying to wrangle a bit of film in there, especially if it involves using a business card to spread open the pressure plate like some people do (yikes!).
As for hand cutting the leader, yes it works. But I'd rather have a bunch of neatly cut leaders for some reason as I feel it looks much more "professional" for some reason
One thing I find with mine is that the take-up spool's tab always requires a bit of persuasion before it will accept the film. That's a bit annoying.