Correct slide stop spring position:
http://glocktalk.com/forums/showpost...57&postcount=3
If pins are walking out you need to contact Glock, in rare cases it can mean the slide stop spring is weak or the slide stop is otherwise out of spec, but it usually means either the pin or the locking block are out of spec. If Glock wants you to send the gun back to them, request a shipping label.