I replaced my firing pin and spring and the new spring was bending enough in a few places that it was dragging in my bolt and causing some vertical stringing. Sooo I ordered another spring, repaced it with the handy little Sinclair tool and this one is also bending/dragging in my bolt and causing vertical stringing. Am I doing something wrong? I went back to the factory pin/spring combo and no bending or dragging. Has anyone else had this trouble with after market springs?