Re: trigger creep ??
Never heard the term, myself.
Trigger's got three stages of movement.
You got the first part, where the trigger is moving, but nothing else is happening. That's called "takeup", and sometimes "slop". Military rifles often have a lot of takeup. Double action automatics, when the hammer is cocked, usually have a lot of takeup. You can work with it, but the better triggers don't have any.
Second part is the "travel". That's the distance the trigger moves, from when you first have tension on it until the hammer falls.
Then you have "overtravel". That's the distance the trigger moves after the shot has been fired. Preferably, you don't want any overtravel. You want the trigger to break (that's what it's called when the hammer releases - the trigger "breaks") and then stop. Continuing to move can cause you to pull the gun off target. There are things called "trigger stops", that prevent overtravel.
I've always heard that a "hair trigger" was one that had an extremely light pull. It was so light, that weight of a hair landing on it would set it off.
Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297
I always take precautions.
Beware the Evil Bullet Fairies.