As long as I release the trigger completely after DA pull, it will reset. Pulling DA slowly through the whole cycle results in it not resetting so the next pull results in the cylinder turning but not cocking the hammer, sometimes twice in a row. Again, it doesn't get hung up if I pull the trigger hard and fast then release the trigger completely so it resets. I will be sending back to Smith but was hoping someone could give me an idea and terminology of what is going on, thanks I advance. Tried to explain the best I could.