I've had a sav2, a couple actually, for 12+ yrs. Slam fires or fp dropping sound like you've got the wrong spring in or you have pull weight set to light or sear engagement is too minimal. I've also had 2 sss comp triggers. First one was perfect, the 2nd one was quite as crisp. Both were easier to get set than the sav2. Once the sav2 is set, it is very nice. Mine is set at 1.25 or 1.5lb. The one on a rifle I sold was set at 10 or 12oz, 6br bench gun.