You can test this by slowly allowing the trigger to move forward after a double action stroke, to the point just before it returns all the way forward. There is a point just before the trigger returns all the way forward that will bind the gun when pulling the trigger rearward again. Sometimes it takes a few tries to find that spot as it is a rather narrow window where this can occur. It is worse on some guns than others.

__________________
Richard Gillespie
FBINA 102