Has anyone compared zirconia grinding media with alumina media? I currently use alumina beads in my paint manufacturing unit. A supplier suggested switching to zirconia grinding media for better results. They claim it grinds faster and wears less. But zirconia costs more than alumina. I'm wondering if the extra cost is worth it. My main concern is grinding efficiency and how often I need to replace the media. I process water-based paints and some solvent-based coatings. Does zirconia grinding media work well with both types? Also, does anyone know the density difference between these two materials? Looking for real user experiences before making this investment decision.