At the BR-50 Nationals, I think in 96, I won a free freeze job. I sent in my Time barrel and action, removed the bolt release spring. I could not see measurable improvement, but the gun already shot pretty good. I finally ruined that barrel in 2000 and haven't had as good a barrel since. Maybe I should freeze my current barrels. But I suspect the reason I don't shoot as well is I don't practice or take as much time tuning as I did then. So many variables. Rich