Newbie here when it comes to body work. Got my patch piece cut out and slowly spot welded and grinded with 80 grit flap disc. Those small divets - do I weld more and grind again? Or does a thin layer of bondo cover those types of imperfections? I’m assuming I need to keep welding on those small cracks and grind again until there are no imperfections? Again new at this so just trying to learn - Thanks guys!