Not supposed to sandblast spring leaves. Several on here have gotten new springs and been very happy, some shop near St. Louis. Look back through recent posts. I would replace them, not worth the labor, broken leaves.
Ed
Ah I see. I don't have any sandblasting equipment (yet), so my plan was just to wire wheel them. If it's too much of a hassle, it might be worth the few hundred versus all that sweat.