Took delivery of my new 629 on Friday. S/A ok after boosting it. D/A has a hitch when you first pull the trigger, it's happens when it drops the cylinder stop. This causes me to jerk the trigger, no way to control it. Does anyone have a hint,, can I fix it easily or do I ship it back to S&W before even firing it???? 850.00 and what do you get??????/